Add option to set test timeout when debugging

[joaovfsousa]

First of all, thanks for sharing this awesome plugin with us.

Regarding my changes: Sometimes tests fail if you take a long time debugging. This option will allow globally setting the test timeout flag when debugging

[David-Kunz]

Hi @joaovfsousa ,

Thanks so much for this PR! I think I would've put it as part of the o table since it's unrelated to the dap configuration, but it's fine!

Thanks again and best regards, David