-Updated the text string used by Debug_FlagsNotSetMessage.
-Renamed Debug_FlagsNotSetMessage to Debug_FlagsNotSetOverworldConfigMessage.
-Added an equivalent for the battle config file called Debug_FlagsNotSetBattleConfigMessage,
-DEBUG_FLAG_NO_COLLISION -> OW_FLAG_NO_COLLISION
-And moved it to include/config/overworld.h, because at the end of the day it's still an overworld flag just like the other 2 already in that file.
-Corrected miswritten preproc config in DebugAction_Flags_CatchingOnOff.
-Updated the comment that describes the effect of DEBUG_OVERWORLD_MENU reducing the number of characters a tiny bit and fixing a typo.
