Deprecate unused features (#142)

Delete the following unused features:

- u16pixels - made this the default, no reason to use bigger pixel size
- sdl-resample - the current implementation was more robust (works with larger range of frequencies) and faster
- push-audio - the usage of push methodology is wrong for a constant stream if content that need to stay synced (with the video) so the pull methodology even though is more unsafe, complex and contains more code is faster and results in better experience

Also refactor some issues, improved the pull audio implementation and update dependencies.

.github/workflows/rust.yml

@@ -2,9 +2,9 @@ name: Rust
 
 on:
   push:
-    branches: [ dev, master ]
+    branches: [ master ]
   pull_request:
-    branches: [ dev, master, feature/*, fix/* ]
+    branches: [ master, feature/*, fix/* ]
 
 env:
   CARGO_TERM_COLOR: always