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/celadon_mansion_3f.asm

@@ -1,15 +1,15 @@
-_ProgrammerText: ; 9cfa4 (27:4fa4)
+_ProgrammerText:: ; 9cfa4 (27:4fa4)
 	text "Me? I'm the"
 	line "programmer!"
 	done
 
-_GraphicArtistText: ; 9cfbc (27:4fbc)
+_GraphicArtistText:: ; 9cfbc (27:4fbc)
 	text "I'm the graphic"
 	line "artist!"
 	cont "I drew you!"
 	done
 
-_WriterText: ; 9cfe0 (27:4fe0)
+_WriterText:: ; 9cfe0 (27:4fe0)
 	text "I wrote the story!"
 	line "Isn't ERIKA cute?"
 
@@ -20,7 +20,7 @@ _WriterText: ; 9cfe0 (27:4fe0)
 	line "I like her!"
 	done
 
-_GameDesignerText: ; 9d03a (27:503a)
+_GameDesignerText:: ; 9d03a (27:503a)
 	text "Is that right?"
 
 	para "I'm the game"
@@ -34,33 +34,33 @@ _GameDesignerText: ; 9d03a (27:503a)
 	line "come tell me!"
 	done
 
-_CompletedDexText: ; 9d0ad (27:50ad)
+_CompletedDexText:: ; 9d0ad (27:50ad)
 	text "Wow! Excellent!"
 	line "You completed"
 	cont "your #DEX!"
 	cont "Congratulations!"
 	cont "...@@"
 
-_CeladonMansion3Text5: ; 9d0ed (27:50ed)
+_CeladonMansion3Text5:: ; 9d0ed (27:50ed)
 	text "It's the game"
 	line "program! Messing"
 	cont "with it could bug"
 	cont "out the game!"
 	done
 
-_CeladonMansion3Text6: ; 9d12c (27:512c)
+_CeladonMansion3Text6:: ; 9d12c (27:512c)
 	text "Someone's playing"
 	line "a game instead of"
 	cont "working!"
 	done
 
-_CeladonMansion3Text7: ; 9d159 (27:5159)
+_CeladonMansion3Text7:: ; 9d159 (27:5159)
 	text "It's the script!"
 	line "Better not look"
 	cont "at the ending!"
 	done
 
-_CeladonMansion3Text8: ; 9d189 (27:5189)
+_CeladonMansion3Text8:: ; 9d189 (27:5189)
 	text "GAME FREAK"
 	line "Development Room"
 	done