enable acceleration when launching Gorgon

src/prelaunch/gorgon.a

@@ -7,6 +7,7 @@
 
          !source "src/prelaunch/common.a"
 
+         +ENABLE_ACCEL
          lda   #$60
          sta   $8237
          jsr   $3FFD      ; decompress
@@ -20,4 +21,5 @@
          lda   #$A5
          sta   $A5B0      ; patch - don't decrease lives
 +
+         +DISABLE_ACCEL
          jmp   $A720