Put a CromeCast button/option in setting menu so we can cast MCPE to a TV.

Though playing MCPE is nice on our smart devices, sometime we would like to see our game on a bigger screen, and sometime we as gamers have friends come over and want to share our gameplay on our smart TV's. Doing this will allow Bedrock users to feel as if they're on even and fair groung with console players, not to mention increase the sales of MCPE. This will make our LAN parties more fun, especially if we have multiple screens being casted to at once so everyone in the party can watch the progress of each and all players. I'm tired of trying to download multiple casting apps that don't work with MCPE.