Changed the routine which decides which format so that it only does the compare once and then returns that value for the whole cook.
#codereview Daniel.Lamb, Chris.Babcock
[CL 2262575 by Robert Jones in Main branch]
Added support for ADPCM decoding.
Added 'sound type' information to USoundWave
- Android uses this to detect which type of asset it needs to deal with
Added support for selected encoding type via project settings
#codereview Daniel.Lamb, Chris.Babcock
[CL 2260750 by Robert Jones in Main branch]
New files added to contain FVorbisAudioInfo and FOpusAudioInfo, added all necessary includes
Added a few more checks for whether the target platform supports audio streaming where appropriate
Moved #define to .h file as it was being used in two .cpp files (working because of unity build)
[CL 2137973 by Matthew Griffin in Main branch]
Moved most of the contents of FAudioDevice::FreeResource to USoundWave::FreeResources so that we can be sure that all memory is cleared up during teardown.
Removed FreeResource function from some subclasses of audio device, as they weren't doing anything different than the base one.
Also removed ListSounds function from these same classes as that seems to have fallen behind current base class version and isn't used anyway.
Removed platform specific audio buffer storage so that there isn't confusion about which is being used and ensured that casts are used when necessary.
Fixed compile issue with STAT_AudioResourceCreationTime for HTML5.
[CL 2109273 by Matthew Griffin in Main branch]
Moved functions to check for and select Compressed Audio Info class to the audio device as the audio formats are not accessible in cooked builds (and shouldn't really need to be either).
[CL 2057758 by Matthew Griffin in Main branch]
