Power BI Embedded tile embedding enhancements

## Power BI Embedded has added support for more tile types that can be embedded. Here are the additional tile types: * Live page tiles * Custom visual tiles * R visual tiles * Live stream tiles * Image tiles * Video tiles * Web content tiles * Q&A tiles * Visio tiles To read more, see the [wiki entry about tile embedding](https://github.com/Microsoft/PowerBI-JavaScript/wiki/Tile-Embed). * Power BI Embedded * Features * [ Power BI Embedded](https://azure.microsoft.com/en-gb/products/power-bi-embedded/)