string-to-tag

Usage:
``
import { css, html } from "lit-element"
import { strToTag } from "string-to-tag"

const simple = "My string...";
strToTag(simple, html) // TemplateResult

// Retain context
const binded = "Test ${this.myProp}";
strToTag.bind(this)(binded, html) // TemplateResult

// CSS
const _css = ":host { background: red }";
strToTag(_css, css) // CSSResult
``