Add Makefile for future Homebrew support (see BlueM#4)

Makefile

@@ -0,0 +1,25 @@
+CC = cc 
+CFLAGS = -include cliclick_Prefix.pch -I Actions
+
+cliclick: Actions/ClickAction.o \
+          Actions/DoubleclickAction.o \
+          Actions/KeyBaseAction.o \
+          Actions/KeyDownAction.o \
+          Actions/KeyDownUpBaseAction.o \
+          Actions/KeyPressAction.o \
+          Actions/KeyUpAction.o \
+          Actions/MouseBaseAction.o \
+          Actions/MoveAction.o \
+          Actions/PrintAction.o \
+          Actions/TripleclickAction.o \
+          Actions/WaitAction.o \
+          ActionExecutor.o \
+          cliclick.o
+	gcc -o cliclick $^ -framework Cocoa
+
+install: cliclick
+	cp cliclick /usr/local/bin/
+
+clean:
+	@rm -vf *.o Actions/*.o
+	@rm -vf cliclick