Add makefile to drive the most common commands.

just type make, make clean, make test
no need to remember the internal commands

Author: cristianoc

Makefile

@@ -0,0 +1,26 @@
+SHELL = /bin/bash
+
+config:
+	./scripts/ninja.js config
+
+build: config
+	dune build
+	./scripts/ninja.js build
+
+watch: config
+	dune build -w
+
+dce: build
+	opam exec reanalyze.exe -- -dce-cmt _build
+
+test: build
+	npm test
+
+clean:
+	dune clean
+	./scripts/ninja.js clean
+
+
+.DEFAULT_GOAL := build
+
+.PHONY: config build test