The Boarding Party snafu update

[AngleWyrm]

Adding the ability 'Master Computer' to a frigate hull made it fly normally (non-critical), and still allowed the boarding parties to take it over. Evidently the boarding parties don't have to destroy a master computer.

And since Toxic Injecters don't work anyway, one could abstract away the whole Bridge/Quarters/LifeSupport thing and simplify the vehiclesizes.txt at the same time.