add an event and a thread to detect game start if run from steam

[arnesacnussem]

#7

[arnesacnussem]

use a loop to detect if the game start
but start game with extra parmas from steam url require manual confirm.
from default arg, the thread wait 60*100ms for the game to start, don't know if this is good,but it works

btw, there should a dialog that indicate we're waiting for game to start,especially if we want wait unlimite time,and we should do make it wait unlimite time.

[arnesacnussem]

we can delete the '-no_logo_splashes' param when run it from steam to reduce steam's confirmation

[R4wizard]

@arnesacnussem Thank you for your contributions! I'll hopefully get a chance to review this and #23 over the weekend.

[arnesacnussem]

still something need to change on this, about 8hr after i'll push, then we don't need to wait for timeout.

it use a inifity loop thread to detect if game start, and should make the thread 'single instance'.

[arnesacnussem]

@R4wizard i've updated my code,but git push is broken on my computer, so those changes is edited on github webpage, may contains some format issue.