Reorganize all mandatory modules into a parent module, core

Fixed C FFI pointer types

Author: 9prady9

Cargo.toml

@@ -27,15 +27,15 @@ indexing = []
 graphics = []
 image = []
 lapack = []
-machine_learning = []
+ml = []
 macros = []
 random = []
 signal = []
 sparse = []
 statistics = []
 vision = []
 default = ["algorithm", "arithmetic", "blas", "data", "indexing", "graphics", "image", "lapack",
-"machine_learning", "macros", "random", "signal", "sparse", "statistics", "vision"]
+"ml", "macros", "random", "signal", "sparse", "statistics", "vision"]
 
 [dependencies]
 libc = "0.2"

examples/using_half.rs

@@ -5,7 +5,7 @@ fn main() {
     set_device(0);
     info();
 
-    let values: Vec<_> = (1u8..101).map(f32::from).collect();
+    let values: Vec<_> = (1u8..101).map(std::convert::From::from).collect();
 
     let half_values = values.iter().map(|&x| f16::from_f32(x)).collect::<Vec<_>>();