add makefile

Makefile

+SHELL := /bin/bash
+l = "127.0.0.1"
+p = "6653,6633"
+ofp = "13"
+
+install:
+	cargo install --path "."
+
+uninstall:
+	cargo uninstall tenjin_sdn
+
+run:
+	cargo r -- run -p $(p) -l $(l) ctrl$(ofp)
+
+release:
+	cargo r -r -- run -p $(p) -l $(l)
+
+build:
+	cargo b -r
+
+clean:
+	cargo clean
+
+topo = 2
+mn:
+	sudo mn --controller=remote,ip=127.0.0.1 --mac --switch=ovsk,protocols=OpenFlow$(ofp) --topo=tree,$(topo)
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