VERSION_EU audio files (#277)

* remove yamls that were wrong and prevented jp rev0 from building correctly

* playerstate

* some jp rev0 settings

* func_800145FC should return value instead of count

* enum usage

* format

* rename vars in Audio_PlaySoundTestTrack

* Makefile: audio OPTFLAGS for EU

* VERSION EU audio_general decompiled

* audio_effects.c (Identical to US)

* audio_heap.c

* VERSION_EU audio_load.c

* renames

* audio_playback.c

* audio_seqplayer

* audio_synthesis.c

* comment

* EU audio_thread.c

* fox load symbols

* more EU symbols and functions identified

* state_1C8 -> state

* identify more eu symbols

* more EU symbols

Makefile

@@ -332,6 +332,7 @@ build/src/libultra/rmon/%.o: OPTFLAGS := -O1 -g0
 build/src/libultra/debug/%.o: OPTFLAGS := -O1 -g0
 build/src/libultra/host/%.o:	OPTFLAGS := -O1 -g0
 build/src/audio/%.o: OPTFLAGS := -O2 -g0
+build/srceu/audio/%.o: OPTFLAGS := -O2 -g0 # temporary
 
 # per-file flags
 build/src/audio/audio_effects.o: CFLAGS += -use_readwrite_const