Implemented somewhat naive scharr operator
Implemented somewhat naive scharr operator

debug-de-su-ka/pal,mateunho/pal,debug-de-su-ka/pal,aolofsson/pal,eliteraspberries/pal,RafaelRMA/pal,olajep/pal,mateunho/pal,8l/pal,eliteraspberries/pal,parallella/pal,eliteraspberries/pal,parallella/pal,olajep/pal,mateunho/pal,Adamszk/pal3,RafaelRMA/pal,eliteraspberries/pal,debug-de-su-ka/pal,debug-de-su-ka/pal,8l/pal,aolofsson/pal,aolofsson/pal,8l/pal,debug-de-su-ka/pal,aolofsson/pal,Adamszk/pal3,mateunho/pal,mateunho/pal,parallella/pal,olajep/pal,parallella/pal,olajep/pal,Adamszk/pal3,parallella/pal,Adamszk/pal3,RafaelRMA/pal,eliteraspberries/pal,8l/pal,RafaelRMA/pal