-Finished up player mapping

-Added SteamId property to CharacterEntity that uses the new player mapping system
-Overhauled object managers again (things might still be broken)
-Added HackSpeedMultiplier, RealisticSound, PermanentDeath and ClientCanSave properties to the server config definition
-Fixed bug with object manager profiling

-Added safety check on server tool entity tree refresh and BaseObjectManager.RefreshInternalData()
-Added floating objects and static cube grids to the /delete chat command

-Added /owner that will reset the owner of all blocks in a given cube grid to the value specified
-Added /export that will export the specified cube grid to /Mods/Exports/somecubegridname.sbc
-Started on /import command that is the reverse of the /export command
-Added /spawn command to spawn random ships or ships defined in spawn groups
-Moved cargo ship management into its own class