Allow user to define what gesture will be used to move window or change it to swipe up.

[Nikitf777]

Now to move window "swipe down" gesture is used. But I want it to be a "three finger up", because "down" gesture conflict with "three finger down" gesture (I know, that it changes to up->down when moving windows by swipe down option is enabled. But it is quite inconvenient gesture. But if moving window will be possible by swipe up, the "three finger up" gesture, which currently used to maximize window, will not be needed, because when window "touches" the top of the screen, it automatically maximizes by GNOME shell. So to maximize window, you will need to swipe up as before, but it will happen faster than before and at the same time it will free up the "three finger down->up" gesture.

Sorry for my English and for possible mistakes, I wrote this in a hurry. Maybe I'll correct the issue later.