Fix HTTPFSv2 using proxy (alibaba#336) (alibaba#337)

Signed-off-by: Coldwings <[email protected]>
Co-authored-by: Coldwings <[email protected]>

Don't use gtest_main and gflags_nothreads (alibaba#316)

Merge pull request alibaba#302 from WaberZhuang/release/0.6

[feat] http client with cert

fs: support xattr for extfs and subfs (alibaba#298)

Signed-off-by: yuchen.cc <[email protected]>

enhance for http (alibaba#279)

Signed-off-by: liulanzheng <[email protected]>

fix url parser without path (alibaba#269)

Signed-off-by: liulanzheng <[email protected]>

update CI script

Some fixes for networking (alibaba#242)

1. RPC client now supports both v4 and v6. Don't need to create two clients any more.
2. HTTP client removes v6 temporarily. There are still a lot work to be done for HTTP to truly support IPv6 (url parse, domain resolve, single client that supports both sockets), leave this work to the future...
3. Backup errno when KernelSocketStream destruct
4. Endpoint adds a string constructor
5. CMake can build openssl and curl from source now

Auto PR from release/0.6 to main (alibaba#221)

ipv6 (alibaba#192)

* IPv6