Fixes and Improvements Patch

This patch fixes, tweaks and adds the following:
 * ~~Adds size_multiplier var to humans: Allows admins to adjust the visible size of a human mob~~
 * ~~Adds icon_update var to humans: Allows admins to block icon updating of a human mob~~
 * ~~Hardsuits now correctly stop magboots and masks from rendering~~
 * Map adjustments to Syndicate Ship
 * Map adjustments to brig (fixes #6410)
 * Map adjustments to ERT area
 * Stun batons now spawn on the map with a power cell already attached to it
 * Nuke-ops no longer spawn with weapons
 * Fixes nuke-ops spawning with a locker instead of uplink device on calamity
 * Fixes nuke-op radios not having freerange set
 * Fixes wheelchairs and office chairs not stopping people from falling down while buckled to them (and therefore legless people getting stuck forever unless admin fixes it)
 * ERT rig suits now have full radiation protection (fixes #6369)