Scrapper gyro bugs

[miriforst.1290]

As of the change of the damage scaling of gyros to reduce their damage when used by tanky builds there are some oddities creeping in.

First the big bug is that blast gyro no longer creates a super speed field when it successfully detonates on its own with final salvo equipped. Manual detonation still creates a field.

The other bug which i don't know if intended or not is that gyro death explosions now causes the engineer to be revealed. This is kind of a big deal to sneak gyro and the function gyro as during a stealth rez the gyro will explode on a successful revive and thus reveal you if anything is nearby. Its a big deal to all gyros more or less that are used defensively.