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/silph_co_4f.asm

@@ -1,56 +1,56 @@
-_UnnamedText_19de0: ; 827e4 (20:67e4)
+_UnnamedText_19de0:: ; 827e4 (20:67e4)
 	text "Sssh! Can't you"
 	line "see I'm hiding?"
 	done
 
-_UnnamedText_19de5: ; 82803 (20:6803)
+_UnnamedText_19de5:: ; 82803 (20:6803)
 	text "Huh? TEAM ROCKET"
 	line "is gone?"
 	done
 
-_SilphCo4BattleText2: ; 8281e (20:681e)
+_SilphCo4BattleText2:: ; 8281e (20:681e)
 	text "TEAM ROCKET has"
 	line "taken command of"
 	cont "SILPH CO.!"
 	done
 
-_SilphCo4EndBattleText2: ; 8284b (20:684b)
+_SilphCo4EndBattleText2:: ; 8284b (20:684b)
 	text "Arrgh!"
 	prompt
 
-_SilphCo4AfterBattleText2: ; 82853 (20:6853)
+_SilphCo4AfterBattleText2:: ; 82853 (20:6853)
 	text "Fwahahaha!"
 	line "My BOSS has been"
 	cont "after this place!"
 	done
 
-_SilphCo4BattleText3: ; 82882 (20:6882)
+_SilphCo4BattleText3:: ; 82882 (20:6882)
 	text "My #MON are my"
 	line "loyal soldiers!"
 	done
 
-_SilphCo4EndBattleText3: ; 828a2 (20:68a2)
+_SilphCo4EndBattleText3:: ; 828a2 (20:68a2)
 	text "Darn!"
 	line "You weak #MON!"
 	prompt
 
-_SilphCo4AfterBattleText3: ; 828b8 (20:68b8)
+_SilphCo4AfterBattleText3:: ; 828b8 (20:68b8)
 	text "The doors are"
 	line "electronically"
 	cont "locked! A CARD"
 	cont "KEY opens them!"
 	done
 
-_SilphCo4BattleText4: ; 828f5 (20:68f5)
+_SilphCo4BattleText4:: ; 828f5 (20:68f5)
 	text "Intruder spotted!"
 	done
 
-_SilphCo4EndBattleText4: ; 82908 (20:6908)
+_SilphCo4EndBattleText4:: ; 82908 (20:6908)
 	text "Who"
 	line "are you?"
 	prompt
 
-_SilphCo4AfterBattleText4: ; 82916 (20:6916)
+_SilphCo4AfterBattleText4:: ; 82916 (20:6916)
 	text "I better tell the"
 	line "BOSS on 11F!"
 	done