Expanded test map + bugfixes — Last Gang Standing Steam update #847894

- fixed dead players being able to throw grenades and take some other actions - adjusted the explosives mixture in breaching charges, they now blow up after 30 seconds and are slightly more powerful - adjusted breaching charge warning tag distance from 30m to 10m - phoenix jetpack now holds more fuel - walls are now visible at any distance - added a new area to the test map and a couple more possible player spawns - you can no longer build faction cores where they would overlap another factions territory