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/fuchsia_house.asm

@@ -1,4 +1,4 @@
-_FuchsiaHouse1Text1: ; 9e2a3 (27:62a3)
+_FuchsiaHouse1Text1:: ; 9e2a3 (27:62a3)
 	text "SAFARI ZONE's"
 	line "WARDEN is old,"
 	cont "but still active!"
@@ -7,7 +7,7 @@ _FuchsiaHouse1Text1: ; 9e2a3 (27:62a3)
 	line "false, though."
 	done
 
-_FuchsiaHouse1Text2: ; 9e2f3 (27:62f3)
+_FuchsiaHouse1Text2:: ; 9e2f3 (27:62f3)
 	text "Hmm? You've met"
 	line "BILL?"
 
@@ -18,7 +18,7 @@ _FuchsiaHouse1Text2: ; 9e2f3 (27:62f3)
 	cont "even as a child!"
 	done
 
-_FuchsiaHouse1Text3: ; 9e34d (27:634d)
+_FuchsiaHouse1Text3:: ; 9e34d (27:634d)
 	text "BILL files his"
 	line "own #MON data"
 	cont "on his PC!"