Build the Virtual Console patch with make crystal11_vc (#882)

Fixes #813

vc/pokecrystal11.constants.asm

@@ -0,0 +1,40 @@
+INCLUDE "constants.asm"
+
+; These are all the asm constants needed to make the crystal11_vc patch.
+
+vc_const: MACRO
+	println "00:{04x:\1} \1" ; same format as rgblink's .sym file
+ENDM
+
+; [fight begin]
+	vc_const SCREEN_HEIGHT_PX
+
+; [print forbid 2]
+	vc_const A_BUTTON
+; [print forbid 3]
+	vc_const MAPGROUP_CIANWOOD
+	vc_const MAP_CIANWOOD_PHOTO_STUDIO
+; [print forbid 5]
+	vc_const NO_INPUT
+	vc_const B_BUTTON
+	vc_const D_UP
+	vc_const D_DOWN
+
+; [FPA 001 Begin]
+	vc_const FISSURE
+; [FPA 002 Begin]
+	vc_const SELFDESTRUCT
+; [FPA 003 Begin]
+	vc_const THUNDER
+; [FPA 004 Begin]
+	vc_const FLASH
+; [FPA 005 Begin]
+	vc_const EXPLOSION
+; [FPA 006 Begin]
+	vc_const HORN_DRILL
+; [FPA 007 Begin]
+	vc_const HYPER_BEAM
+
+; [FPA 042801 Begin]
+	vc_const PRESENT
+	vc_const anim_1gfx_command