Allows floating in the space holodeck scene
Holodeck computer uses more power when active and turns off if power is lost.

Allows players to float when using the 'Space' holodeck scenery.
Fixes holodeck deleting space carp when the scenery is changed.
Holocarp start docile and cannot leave the holodeck unless the conole is emagged.
Holocarp can spawn in the space scenery with a small probability.
Emagged holodeck consoles stay that way.

Separates emagged state and holodeck safety state, prevents silicons from re-enabling safeties if someone has emagged the console.
Merge remote-tracking branch 'upstream/dev' into holospace
HTML formatting

Also removes redundant holotable grab handling.
Merge pull request #7222 from mwerezak/holospace

Holodeck