remove dependency on oscP5, add a UDP client and server for message passing between the sketch and the PDE
add tweak.port parameter for tweak mode communication and some cleanups

- tweak.port can be a number or 'auto', in this case a port number will be randomly generated at run time in the range of 0xc000 - 0xffff.
small cleanup
Merge pull request #2808 from galsasson/tweakmodeudp

Tweakmodeudp