✨ Extend original package with more connectivity util functions

[claired4l]

Adding following functions to communicate between react-native app and Android app:

• void sendGenuineMessage(String messagePath, Callback replyCb, Callback errCb);
• void getCapableAndReachableNodes(String capability, Callback replyCb, Callback errCb);
• void getNonCapableAndReachableNodes(String capability, Callback replyCb, Callback errCb);
• void openRemoteURI(String uri, String nodeId, Callback replyCb, Callback errCb);

See README for more details