[logging] Centralize configuration for trace flags (grpc#36576)

All TraceFlags are now configured in `src/core/lib/debug/trace_flags.yaml`. The format is:

```
my_flag:
  default: false                   # the default value; default=false
  description: Some Description
  debug_only: false                # debug_only flags only work in debug builds; default=false
  internal: false                  # internal flags will not show up in documentation; default=false
```

To regenerate the trace flag source code, run `tools/codegen/core/gen_trace_flags.py` (requires mako). This script is also run when sanity checking.

This PR also adds two new features:

### Glob-based flag configuration

Trace flag configuration now supports `?` (single wildcard character) and `*` (one or more wildcard characters).  For example, using `GRPC_TRACE='event_engine*'` will enable all flags that match that glob. It expands to:

* event_engine
* event_engine_client_channel_resolver
* event_engine_dns
* event_engine_endpoint
* event_engine_endpoint_data
* event_engine_poller

### A cleaner trace-logging macro in abseil logging format

If your goal is only to add log statements when the `fault_injection_filter` trace flag is enabled, you can use the macro:

```
GRPC_TRACE_LOG(fault_injection, INFO) << "Filtered:" << 42;
```

When the trace flag is enabled, the the log will show something like this:
```
I0000 00:00:1715733657.430042      16 file.cc:174] Filtered:42
```

----

Note: just like with the gpr_log to abseil logging conversion, the pre-existing trace logging usages can be replaced with the new tracing macro across multiple PRs.

Closes grpc#36576

PiperOrigin-RevId: 641295215

Author: drfloob

.gitattributes

@@ -35,3 +35,7 @@ src/core/lib/experiments/experiments.h linguist-generated=true
 src/core/lib/experiments/experiments.cc linguist-generated=true
 bazel/experiments.bzl linguist-generated=true
 test/cpp/microbenchmarks/huffman_geometries/** linguist-generated=true
+doc/trace_flags.md linguist-generated=true
+src/core/lib/debug/trace_flags.h linguist-generated=true
+src/core/lib/debug/trace_flags.cc linguist-generated=true
+src/python/grpcio_observability/observability_lib_deps.py linguist-generated=true

BUILD

@@ -1408,17 +1408,6 @@ grpc_cc_library(
     ],
 )
 
-grpc_cc_library(
-    name = "call_trace",
-    hdrs = [
-        "//src/core:lib/surface/call_trace.h",
-    ],
-    language = "c++",
-    deps = [
-        "grpc_trace",
-    ],
-)
-
 grpc_cc_library(
     name = "dynamic_annotations",
     hdrs = [
@@ -1487,9 +1476,6 @@ grpc_cc_library(
 
 grpc_cc_library(
     name = "api_trace",
-    srcs = [
-        "//src/core:lib/surface/api_trace.cc",
-    ],
     hdrs = [
         "//src/core:lib/surface/api_trace.h",
     ],
@@ -1536,7 +1522,6 @@ grpc_cc_library(
         "//src/core:lib/iomgr/ev_epoll1_linux.cc",
         "//src/core:lib/iomgr/ev_poll_posix.cc",
         "//src/core:lib/iomgr/ev_posix.cc",
-        "//src/core:lib/iomgr/ev_windows.cc",
         "//src/core:lib/iomgr/fork_posix.cc",
         "//src/core:lib/iomgr/fork_windows.cc",
         "//src/core:lib/iomgr/gethostname_fallback.cc",
@@ -1714,7 +1699,6 @@ grpc_cc_library(
         "//src/core:posix_event_engine_endpoint",
         "//src/core:resolved_address",
         "//src/core:resource_quota",
-        "//src/core:resource_quota_trace",
         "//src/core:slice",
         "//src/core:slice_buffer",
         "//src/core:slice_cast",
@@ -2049,7 +2033,6 @@ grpc_cc_library(
     deps = [
         "api_trace",
         "call_combiner",
-        "call_trace",
         "call_tracer",
         "channel",
         "channel_arg_names",
@@ -2086,7 +2069,6 @@ grpc_cc_library(
         "//src/core:channel_args_preconditioning",
         "//src/core:channel_fwd",
         "//src/core:channel_init",
-        "//src/core:channel_stack_trace",
         "//src/core:channel_stack_type",
         "//src/core:closure",
         "//src/core:compression",
@@ -2116,7 +2098,6 @@ grpc_cc_library(
         "//src/core:pipe",
         "//src/core:poll",
         "//src/core:promise_status",
-        "//src/core:promise_trace",
         "//src/core:race",
         "//src/core:ref_counted",
         "//src/core:seq",
@@ -2312,7 +2293,6 @@ grpc_cc_library(
     visibility = ["@grpc:public"],
     deps = [
         "api_trace",
-        "call_trace",
         "channel_arg_names",
         "channelz",
         "config",
@@ -2348,7 +2328,6 @@ grpc_cc_library(
         "//src/core:poll",
         "//src/core:ref_counted",
         "//src/core:resource_quota",
-        "//src/core:resource_quota_trace",
         "//src/core:seq",
         "//src/core:slice",
         "//src/core:slice_refcount",
@@ -3006,18 +2985,28 @@ grpc_cc_library(
 
 grpc_cc_library(
     name = "grpc_trace",
-    srcs = ["//src/core:lib/debug/trace.cc"],
-    hdrs = ["//src/core:lib/debug/trace.h"],
+    srcs = [
+        "//src/core:lib/debug/trace.cc",
+        "//src/core:lib/debug/trace_flags.cc",
+    ],
+    hdrs = [
+        "//src/core:lib/debug/trace.h",
+        "//src/core:lib/debug/trace_flags.h",
+        "//src/core:lib/debug/trace_impl.h",
+    ],
     external_deps = [
-        "absl/log:log",
+        "absl/log",
         "absl/strings",
+        "absl/container:flat_hash_map",
     ],
     language = "c++",
     visibility = ["@grpc:trace"],
     deps = [
         "config_vars",
         "gpr",
         "grpc_public_hdrs",
+        "//src/core:glob",
+        "//src/core:no_destruct",
     ],
 )
 
@@ -4314,7 +4303,6 @@ grpc_cc_library(
     language = "c++",
     visibility = ["@grpc:http"],
     deps = [
-        "call_trace",
         "call_tracer",
         "channel_arg_names",
         "config",
@@ -4531,20 +4519,6 @@ grpc_cc_library(
     deps = ["gpr"],
 )
 
-grpc_cc_library(
-    name = "http_trace",
-    srcs = [
-        "//src/core:ext/transport/chttp2/transport/http_trace.cc",
-    ],
-    hdrs = [
-        "//src/core:ext/transport/chttp2/transport/http_trace.h",
-    ],
-    deps = [
-        "gpr_platform",
-        "grpc_trace",
-    ],
-)
-
 grpc_cc_library(
     name = "hpack_parser_table",
     srcs = [
@@ -4565,7 +4539,6 @@ grpc_cc_library(
         "gpr_platform",
         "grpc_trace",
         "hpack_parse_result",
-        "http_trace",
         "//src/core:hpack_constants",
         "//src/core:metadata_batch",
         "//src/core:no_destruct",
@@ -4668,7 +4641,6 @@ grpc_cc_library(
         "grpc_base",
         "grpc_public_hdrs",
         "grpc_trace",
-        "http_trace",
         "//src/core:hpack_constants",
         "//src/core:hpack_encoder_table",
         "//src/core:metadata_batch",
@@ -4801,7 +4773,6 @@ grpc_cc_library(
         "hpack_encoder",
         "hpack_parser",
         "hpack_parser_table",
-        "http_trace",
         "httpcli",
         "iomgr",
         "iomgr_buffer_list",
@@ -4838,7 +4809,6 @@ grpc_cc_library(
         "//src/core:random_early_detection",
         "//src/core:ref_counted",
         "//src/core:resource_quota",
-        "//src/core:resource_quota_trace",
         "//src/core:slice",
         "//src/core:slice_buffer",
         "//src/core:slice_refcount",