add basic test suite for gradlew-fdroid

!707
fdroiddata#6216

The se.manyver app is licensed MPL, the files came from:
81d247a6cd

tests/source-files/se.manyver/react-native.config.js

@@ -0,0 +1,18 @@
+module.exports = {
+  dependencies: {
+    'nodejs-mobile-react-native': {
+      // Ignored because we need to set this up manually in order to
+      // call some APIs of this library directly in our MainActivity.java
+      platforms: {
+        android: null,
+      },
+    },
+    'react-native-bluetooth-socket-bridge': {
+      // This package needs some config passed as arguments to the constructor
+      // so we need to "link" it manually in MainApplication.java
+      platforms: {
+        android: null,
+      },
+    },
+  },
+};