Added license and author
Added license and author

Pole-he/DRDoubleTapButton,Pole-he/DRDoubleTapButton,icepy/DRDoubleTapButton,dgrueda/DRDoubleTapButton,machelix/DRDoubleTapButton,mohsinalimat/DRDoubleTapButton,machelix/DRDoubleTapButton,mohsinalimat/DRDoubleTapButton,dgrueda/DRDoubleTapButton,icepy/DRDoubleTapButton