updated leapprocessing example
added:
- getFinger(int fingerNr)
- getPointable(int pointableNr)
- getHand(int handNr)

- getActiveFingers()
- getActivePointables()
- getActiveHands()

- getFingerCount()
- getPointableCount()
- getHandCount()

- convertToScreenDimension(int x, int y, int z)
- convertToScreenDimension(Finger finger)
- convertToScreenDimension(Pointable pointable)
- convertToScreenDimension(Hand hand)
Merge branch 'master' of github.com:mrzl/LeapMotionP5