Use voice to confirm "good engine start"#1590

I am really enjoing the GSX integration, the only part taking me out of the immersion is confirming “good engine start”.

I know that FS2Crew supports the voice command “Cockpit to ground, good start confirmed, please disconnect” so I am hoping BATC can do it as well.

This is not part of ATC communications, this should be added by GSX which is specialized on ground operations