Correct .data section ranges in delinked objects

The change in the previous commit was a silly case of not thinking
things through, not realizing that the .data range moved to Core.obj was
nowhere near the beginning of the section as it should be.  g_game has
been moved back into Jet2.obj (time will tell if this is correct) and a
missed data strucure at the beginning of .data (where it ought to be)
now makes up Core.obj's .data portion.

decompile/src/JSRF/Jet2.cpp

@@ -7,6 +7,10 @@ Main function.
 #include "Core.hpp"
 
 
+// Address: 0x0022FCE0
+Game * g_game;
+
+
 // Address: 0x0006F9E0
 // Matching: yes
 void main(void) {