add vendoring with go dep

vendor/github.com/vmware/govmomi/govc/emacs/Makefile

@@ -0,0 +1,27 @@
+CASK = cask
+EMACS_BIN ?= emacs
+EMACS_FLAGS =
+EMACS_EXEC = $(CASK) exec $(EMACS_BIN) --no-site-file --no-site-lisp --batch $(EMACS_FLAGS)
+
+OBJECTS = govc.elc
+
+elpa:
+	$(CASK) install
+	$(CASK) update
+	touch $@
+
+.PHONY: build test docs clean
+
+build: elpa $(OBJECTS)
+
+test: build docs
+	$(EMACS_EXEC) -l test/make.el -f make-test
+
+docs: build
+	$(EMACS_EXEC) -l test/make.el -f make-docs
+clean:
+	rm -f $(OBJECTS) elpa
+	rm -rf .cask
+
+%.elc: %.el
+	$(EMACS_EXEC) -f batch-byte-compile $<