Implements dagger project init

Signed-off-by: Richard Jones <richard@dagger.io>

tests/project.bats

@@ -0,0 +1,16 @@
+setup() {
+	load 'helpers'
+
+	common_setup
+}
+
+@test "project init" {
+	cd "$TESTDIR"
+	# mkdir -p ./project/init
+	"$DAGGER" project init ./project/init --name "github.com/foo/bar"
+	test -d ./project/init/cue.mod/pkg
+	test -d ./project/init/cue.mod/usr
+	test -f ./project/init/cue.mod/module.cue
+	contents=$(cat ./project/init/cue.mod/module.cue)
+	[ "$contents" == 'module: "github.com/foo/bar"' ]
+}