IoT Library for BLE and WiFi Direct Connection and Communication

Changed void sendInstructionsToRemoteDevice(@Nullable String deviceAddress, @Nullable UUID charxDescriptor, @NonNull String instructions) and its counterpart void sendInstructionsToConnectedDevice(String deviceAddr, @Nullable UUID charxDescriptor, byte[] data) to void sendStringInstructionsToRemoteDevice(@Nullable String deviceAddress, @Nullable UUID charxUuid, @NonNull String instructions) and void sendBytesInstructionsToRemoteDevice(String deviceAddr, byte[] data) respectively, this allows for sending either string or bytes based on BLE characteristic UUID with Write Properties