Extension for custom commands

[sidey79]

Because the Arduino has serval digital and analog pins left for usage, it woud be nice to have some generic appoach to access them.

Set command can be like pin1_on , pin1_off .... which will set the pin with number x to high or low. Get commands can be like get pin1 wich will return state for digital(0-1) or analog pins(0-1023).