Machine people fixes

Disables overheating as most players reporting it makes machine people
unplayable

Fixes machine people's immunity to clone damage

Ensures machine people fall apart and consiousness transferred to
posibrain properly

Prevents robotic chest and groin being seperated which was leading to an
unrepairable body
Added vampire HUD
Allows the insertion of pipework into walls

Pipes will be visible above the wall, allows for easier atmos repairs.
Atmos pipes installed this way can be unwrenched as normal.  Walls are
unaffected.
Merge pull request #351 from Bone-White/master

Allows the insertion of pipework into walls
Merge pull request #352 from VampyrBytes/master

Machine people fixes
Merge pull request #337 from ZomgPonies/master

Patch