Support multitouch in HdyKeypad
One of the biggest annoyances of HdyKeypad is missing key presses. It happens when the button gets pressed by a non-primary touch point - so, for instance by a second finger when the first one is still pressing another button.
Keypad shouldn't ignore non-primary touch points and should react to them in the same way it does with the first finger.
Edited by Alice Mikhaylenko