This should have little/no gameplay effect right now, just paving the
way for directional lights.
Replaced handle_rotation() on buckly things with this.
Signed-off-by: Mloc-Argent <colmohici@gmail.com>
Hoverpods are a subtype of mecha/working again, but drills are now
ripley specific. Hoverpods have increased cargo and can carry 3 tools.
Hoverpod crates now come with a clamp and passenger compartment
pre-installed.
Brings back the combatpod, can equip weapons.