Patch test projects so they build without deprecated features

Also ensure the test scripts pass shellcheck

test/patches/libbet.patch

@@ -0,0 +1,17 @@
+diff --git a/makefile b/makefile
+index 6513518..35826eb 100644
+--- a/makefile
++++ b/makefile
+@@ -85,10 +85,10 @@ $(title).gb: $(objlisto)
+ 	$(RGBFIX) -jvsc -k "OK" -l 0x33 -m ROM -p 0xFF -t "LIBBET" -v $@
+ 
+ obj/gb/%.o: src/%.z80 src/hardware.inc src/global.inc
+-	${RGBASM} -h -o $@ $<
++	${RGBASM} -o $@ $<
+ 
+ obj/gb/%.o: obj/gb/%.z80
+-	${RGBASM} -h -o $@ $<
++	${RGBASM} -o $@ $<
+ 
+ # Files that will be included with incbin
+