Uncloak-on-demolish

Start of attempt to introduce the decloak-on-C4 enhancement mentioned in
 #7028. Had a look at the structure of UnloadCargo (for cloaked APCs/ore
 trucks etc.) and applied the same logic to Demolish.
Adding decloak to infiltration

Since adding decloak to OnInside worked for Demolish, I'm applying the
same logic to Infiltrate.