Macro update, roam mon annotations

Updated map and mapgroup macros to get around an rgbds bug.

Legendary beast locale handling annotated and relabeled.

Added a new constant NUM_ENGINE_FLAGS for use in the EngineFlagAction function.  This will make it easier for modders to add or remove engine flags.

battle/core.asm

@@ -2365,7 +2365,7 @@ Function3cf14: ; 3cf14
 	ld de, SFX_KINESIS
 	call PlaySFX
 	call Function3d432
-	ld de, SFX_UNKNOWN_2A
+	ld de, SFX_FAINT
 	call PlaySFX
 	hlcoord 1, 0
 	lb bc, 4, 10
@@ -4388,7 +4388,7 @@ Function3dc5b: ; 3dc5b
 	ld de, SFX_KINESIS
 	call PlaySFX
 	call WaitSFX
-	ld de, SFX_UNKNOWN_2A
+	ld de, SFX_FAINT
 	call PlaySFX
 	call WaitSFX
 	call Function3d432