Added some files we forgot to track

Makefile

@@ -0,0 +1,15 @@
+# Simple makefile for now, we'll use something more complex if/when we need it
+
+PROJECT=graphgame
+CXX=g++
+CXXFLAGS=-DDEBUG -g
+LDFLAGS=-lSDL
+OBJECTS=drawutils.o gamecore.o graph.o main.o mainevent.o
+
+all: $(PROJECT)
+
+$(PROJECT): $(OBJECTS)
+	$(CXX) $(LDFLAGS) $(CXXFLAGS) -o $@ $(OBJECTS)
+
+clean:
+	rm -f $(OBJECTS) $(PROJECT)