Get rid of globals.asm. Use ::s to export labels between objects.

globals.asm was a hack that:
- gave rgbasm an extra 100k lines to read
- increased reliance on the python preprocessor
- made the makefile a mess
- gave object creation an extra step
- wasn't even necessary

This speeds up build time by at least a third.

text/maps/lorelei.asm

@@ -1,4 +1,4 @@
-_LoreleiBeforeBattleText: ; 865ef (21:65ef)
+_LoreleiBeforeBattleText:: ; 865ef (21:65ef)
 	text "Welcome to"
 	line "#MON LEAGUE!"
 
@@ -21,12 +21,12 @@ _LoreleiBeforeBattleText: ; 865ef (21:65ef)
 	line "Are you ready?"
 	done
 
-_LoreleiEndBattleText: ; 866c4 (21:66c4)
+_LoreleiEndBattleText:: ; 866c4 (21:66c4)
 	text "How"
 	line "dare you!"
 	prompt
 
-_LoreleiAfterBattleText: ; 866d3 (21:66d3)
+_LoreleiAfterBattleText:: ; 866d3 (21:66d3)
 	text "You're better"
 	line "than I thought!"
 	cont "Go on ahead!"
@@ -36,7 +36,7 @@ _LoreleiAfterBattleText: ; 866d3 (21:66d3)
 	cont "LEAGUE power!"
 	done
 
-_UnnamedText_7627b: ; 86729 (21:6729)
+_UnnamedText_7627b:: ; 86729 (21:6729)
 	text "Someone's voice:"
 	line "Don't run away!"
 	done