Android: add dev variant

android/app/build.gradle

@@ -69,6 +69,10 @@ android {
             dimension "default"
             applicationIdSuffix ".independent"
         }
+        dev {
+            dimension "default"
+            applicationIdSuffix ".dev"
+        }
         playstore {
             dimension "default"
         }

android/app/src/dev/AndroidManifest.xml

@@ -0,0 +1,10 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.ente.photos">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+</manifest>

android/app/src/dev/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">ente dev</string>
+    <string name="backup">backup dev</string>
+</resources>