Add template module to more easily write templates

template.js

@@ -0,0 +1,18 @@
+function setup(root) {
+	root.parts = {}
+	root.querySelectorAll("[part-id]").forEach( element => {
+		root.parts[element.getAttribute("part-id")] = element
+	})
+	root.clone = function() { return setup(this.cloneNode(true)) }
+	return root
+}
+
+function template(strings, ...args) {
+	let buf = []
+	for (i=0;i<strings.length;i++) {
+		buf.push(strings[i], args[i])
+	}
+	let template = document.createElement("template")
+	template.innerHTML = buf.join("")
+	return setup(template.content)
+}