Decompiles metatile behaviors

Combines commits:
* WIP: start on metatile behavior functions
* WIP: more functions
* WIP: more functions
* WIP: another solid chunk + cleanup
* WIP: more things are stuff
* WIP: even more stuff done
* WIP: 🆗
* WIP: Cleaning Up
* WIP: More Cleanup
* WIP: Additional Cleanup
* WIP: clean up defines

ld_script.txt

@@ -92,7 +92,7 @@ SECTIONS {
         asm/new_game.o(.text);
         asm/overworld.o(.text);
         asm/fieldmap.o(.text);
-        asm/metatile_behavior.o(.text);
+        src/metatile_behavior.o(.text);
         asm/field_camera.o(.text);
         asm/field_door.o(.text);
         asm/field_player_avatar.o(.text);
@@ -364,6 +364,8 @@ SECTIONS {
         src/bg_regs.o(.rodata);
         src/string_util.o(.rodata);
         data/data.o(.rodata);
+        data/metatile_behavior.o(.rodata);
+        data/data_835B488.o(.rodata);
         src/battle_ai_script_commands.o(.rodata);
         data/data_83F5738.o(.rodata);
         src/save.o(.rodata);