Move DSXXX function to a more specific location.
. DSAvailable() is not implemented in SoundCore.
. DSInit() & DSUninit(); are only meaningful in Windows.
SoundBuffer: use plain C++ to clean it up as opposed to COM interfaces.
. which are only relevant to the Win32 implementation.
Remove 2 obsolete FMT macros.
NTSC: load bitmaps by resource id.
SoundBuffer: make creation of a SoundBuffer an atomic operation.
Fix 2019 solution.
This replaces the LPDIRECTSOUNDBUFFER pointer with a pure virtual class and an implementation that wraps the LPDIRECTSOUNDBUFFER, allowing other sound implementations without having to simulate the exact alignment of a DIRECTSOUNDBUFFER object.
Additionally, moves the DSInit and DSUninit calls out of the SoundCore.cpp file (into a new DXSoundBuffer.cpp (for Windows)), allowing them to be appropriately reimplemented in a non-DirectSound environment.