Added heat variation option for Performance Stats
Ability to toggle radiators on/off using H key
Item durability loss (Wear) is now heat dependent and incurred only when used
Restricted equip/unequip to docked (inactive) entities
Fixed race condition causing exceptions in database sync code
Added MPL license headers
SectorRenderer renders entities in sector, manages particle systems for ship thrusters
Thrusters apply torque based on orientation and position relative to ship center of mass
GameManager controls the player ship's thrusters
Player can dock with station if they are near
