Unity install referrer receiver for Android

This plugin allows unity applications to catch install referrer from Google Play.

Usage

1. Build project
2. Copy app/build/outputs/aar/app-release.aar and ReferrerReceiver.cs to Unity project
3. Now you may call ReferrerReceiver.getInstallReferrer:

ReferrerReceiver.getInstallReferrer(s=>{
            //do something with s
        }, false);