Created Makefile to build entire project and moved microblaze code back into the repo

mb/Graphics_bsp/Makefile

@@ -0,0 +1,21 @@
+# Makefile generated by Xilinx SDK.
+
+-include libgen.options
+
+LIBRARIES = ${PROCESSOR}/lib/libxil.a
+MSS = system.mss
+
+all: libs
+	@echo 'Finished building libraries'
+
+libs: $(LIBRARIES)
+
+$(LIBRARIES): $(MSS)
+	libgen -hw ${HWSPEC}\
+	       ${REPOSITORIES}\
+	       -pe ${PROCESSOR} \
+	       -log libgen.log \
+	       $(MSS)
+
+clean:
+	rm -rf ${PROCESSOR}