Module v_0_13_5

Fixed

• Fixed #80 file::TokioCompatFile: Incorrect behavior about AsyncSeek
• Fixed file::TokioCompatFile: leave error of exceeding buffer len in consume to handle by BytesMut
• Fixed file::TokioCompatFile: Implement PinnedDrop to poll read and write futures to end, otherwise it would drop the internal request ids too early, causing read task to fail when they should not fail.
• Fixed fs::ReadDir: Implement PinnedDrop to poll future stored internally, otherwise it would drop the internal request ids too early, causing read task to fail when they should not fail.

Added

• Add new fn Sftp::support_expand_path to check if the server supports expand-path extension
• Add new fn Sftp::support_fsync to check if the server supports fsync extension
• Add new fn Sftp::support_hardlink to check if the server supports hardlink extension
• Add new fn Sftp::support_posix_rename to check if the server supports posix-rename extension
• Add new fn Sftp::support_copy to check if the server supports copy extension