add mutex for protecting hand skeleton points
corrections
add TouchInputEmulator class
add isTouch methods for detecting touch down and up
add signals and slots for handling the touch screen
remove unneeded signals
corrected isTouch, not fully functional
using QPointF for handling internal calculations
minor corr
corrected Kalman filter
corrected thumb and index position on the screen
add Kalman filter for both the index and the thumb, removed and skeleton, using instead to pointers for the thumb and the index
add icons
ad separate widget for the thumb
removed toHandCenter, corr to Kalman filter
add parallel biquad filter, add virtual screen threshold as parameter
add fingerprint icon
corrected isTouch, hiding the thumb when the hand is closed
corr isTouch
rotating thumb image with 270 degrees