This fixes the problem described in #13996 in a proper way.
This also adds "deadzone" property to ScrollContainer.
It can be usedon mobile, where taps are not as precise as mouse clicks.
Player couldslightly move their finger when tapping, in which case we still wantthe button to be pressed rather than the container to be scrolled.
(cherry picked from commit dcf5be9)
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)