Ignore user input keys pressed while event is playing

[ShayRubach]

Replication

1. Record a long text writing event (make sure to include letters like 's').
2. Play the event on a notepad or smth that has a ctrl+s option.
3. While event is playing, try to abort it with Ctrl+R

Result

The ctrl+s (save as) option will be invoked from Notepad - we dont want it.

Fix suggestion

1. Add an bool isEventPlaying = false
2. Set to true on PlayEvents() ingress
3. Set to false on StopEvent() + AbortEvent()
4. Using BlockInputAPI if flag is true and block the input unless its the StopKey, and then just call AbortEvent() without actually performing the ctrl stoke (for example).

[Alien-AV]

BlockInputAPI is a cool find, and works well, however it requires admin permissions. It's a big ask from the user, maybe need to make it optional somehow (restart with admin permissions somehow?)

Also I don't know, when the input is blocked, is it possible to know which keys are pressed (I'll check if capture engine keeps capturing at the same time, and if so, it's doable).

[Alien-AV]

From my test it seems that when BlockInput is activated, no events come through even to the capture engine :(
So need to find a way to unblock input on users will.