This is a step towards unifying ShadowMediaCodecConfig structure to accommodate both ExoPlayer and Transcoding codecs configuration.
This change abstracts the codec information to a separate `CodecInfo` class. This allows having codecs with the same information configured with different configurations (passthrough/frame-dropping, decoder/encoder). It also does the following:
* Replaces the map of default codecs with public static final CodecInfo constants for each codec.
* Modifies the ShadowMediaCodecConfig constructor to accept a set of CodecImpls instead of mime types.
* Updates factory methods to reflect the constructor change.
* Updates addSupportedMimeTypes to addDecoder, taking a CodecInfo instead of a mimeType.
This is a non-functional change.
PiperOrigin-RevId: 739857883
d5dcbf4a12