Extract data from field_screen.s

Also move files incorrectly placed in interface dir

graphics/link_games/pkmnjump_321start2.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+156 213 230
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+32 32 32
+131 49 49
+230 65 41
+156 65 65
+255 90 74
+172 115 57
+255 189 74
+255 255 255