Remote GPIO control client

The application allows you to remote control GPIO port PI devices. Communication takes place via UDP/TCP IP.
On the PI device it's necessary to run the server application. Instructions and docs available here: https://rgc-app.tk

## Main features
- Control the states of output pins
- Read the states of input pins
- Control software PWM output pins
- Link multiple pi devices
- Create sequential execution chains through all linked pi devices
- Define and run custom shell commands
- Read/store data from sensors
- build in support for:
- Temperature DS18B20
- Temperature and humidity DHT
- Luminosity Sensor TSL2561
- Rotary encoder KY040
- Range sensor HC-SR04
- custom sensor (create own script to return value)
- Transmit or recive radio frequency codes with generic [low-cost GPIO RF modules](RF.md)
- Create automated actions to change output/pwm, execude chain sequence, transmit RF or run custom command, such actions can have multiple triggers through all linked pi devices with custom conjunction
- Create android desktop widget for fast output change, read sensors value or execude chain sequence
- Setup android notification base on output/input status or sensor value