Document parts of audio (#1000)

* Minor labelling

* progress

* play percentage -> delay

* duration -> gatetime

* more

* more

* more

* seqIdx -> playerIdx

* more

* more

* more

* more

* format

* fix comment

* filters

* more

* media

* confusion

* Sync load is actually slow load

* AudioHeap prefix

* more

* more

* reformat

* more

* more

* AudioLoad

* more

* more

* seq banks

* more consistent

* more

* name last function in audio_load

* More audio_synthesis

* clean up audio tables

* minor

* slow/fast load ramAddr

* format

* remove unused

* Remove union

* remove padding

* audio bank -> sound font

* seqLayer -> layer

* stuff

* seqChannel -> channel

* ChannelLayer -> Layer

* remove define, add bug comment

* format

* more

* cache enum

* more

* AudioSeq function prefix

* naming

* bankIdx -> bankId

* more

* format

* review

* more

* fixes

* avoid hardcoded sfxid's

* SE -> Sfx

Co-authored-by: zelda2774 <zelda2774@invalid>

src/code/code_800C3C20.c

@@ -8,6 +8,6 @@ void func_800C3C20(void) {
     s32 i;
 
     for (i = 0; (i < ARRAY_COUNT(D_8012D200)) & 0xFFFFFFFF; i++) {
-        func_800F87A0(D_8012D200[i]);
+        Audio_StopSfxByBank(D_8012D200[i]);
     }
 }