Add time scale property to Timer node

[wingedadventurer]

Adds time scale property to the Timer node, allowing it to tick faster/slower.

Useful if you are implementing slow motion mechanic, and want specific Timer nodes to behave accordingly (Engine.time_scale won't cut it as it is applied to every node). Think games like Superhot, where game timer can either tick in real-time or in slowmo-time.

[aaronfranke]

@wingedadventurer Is this still desired? If so, it needs to be rebased on the latest master branch.

[reduz]

I don't see a proposal attached to this pull request. Additionally, just using Timer::set_wait_time and multiplying that time for a scale value will result in exactly the same effect, for which adding an extra function looks of little use to me.

I suggest closing it.

[aaronfranke]

This was discussed on Godot's RocketChat. The consensus is that this change is not necessary as it can be easily worked around, and therefore this PR is not desired. Closing.

[rpahut]

Additionally, just using Timer::set_wait_time and multiplying that time for a scale value will result in exactly the same effect, for which adding an extra function looks of little use to me.

Not if you need to engage slow motion and then turn it off, and then on again with a different multiplier, while the timer is ticking.