add everything for beta release

add AndroidManifest.xml for beta

app/build.gradle

@@ -25,6 +25,9 @@ android {
             debuggable true
             applicationIdSuffix ".debug"
         }
+        beta {
+            applicationIdSuffix ".beta"
+        }
     }
 
     lintOptions {

app/src/beta/AndroidManifest.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:label="NewPipe Beta"
+        tools:replace="android:label">
+    </application>
+
+</manifest>