Add NES building and adapt example functions

LibMultiSpacc/neslib/Makefile

@@ -0,0 +1,12 @@
+.PHONY: all clean
+
+all: crt0.o neslib2.lib
+
+neslib2.lib: lz4vram.o pad.o rand.o memfill.o vram_read.o vram_unrle.o oam_meta_spr_clip.o oam_meta_spr_pal.o oam_meta_spr.o oam_spr.o oam_clear_fast.o split.o splitxy.o
+	ar65 a neslib2.lib $^
+
+%.o: %.s $(wildcard *.s *.sinc)
+	cl65 -t nes -Oisr -g -c $*.s 
+
+clean:
+	rm -f *.o *.lst neslib2.lib