Added functionality to launch a Loom App via a custom URL scheme for Android and iOS apps (scheme+host isn't analogous across Android and iOS, so we support 'scheme' only).  The scheme to use is set in the AndroidManifest.xml (Android) and Info.plist (iOS) manually, and will require a soon to be updated LoomCLI for automated overwriting from the app's Loom.config.

This also includes support for data query keys passed in with the custom url for the application to request and use, ie. 'playLoom://?someKey=someData&someKey2=MoreData'.
Helper function to pull <meta-data> from the AndroidManifest
Prep for example & PR
Added custom url scheme overview comment
Ability to check if the app was launched via a custom URL scheme
CustomURLScheme example added
Merge branch 'master' into LFL-LOOM-CustomURLSchemes
Merge branch 'master' into LFL-LOOM-CustomURLSchemes
Minor cleanup pre-PullRequest
Update AndroidManifest.xml
Update README.md
Added delegate that can be registered and notified when the app is opened via a Custom URL launch
Merge pull request #186 from 24BitGames/LFL-LOOM-CustomURLSchemes

Lfl loom custom url schemes