remove redundant slot declarations
fixec c306 and bc304 sided-dependant hardpoints
In .inis: hardpointX -> hardpointGroupX, engineslotX -> engineslotGroupX
merge with master
fixed a remaining merge in mox.ini
Merge pull request #569 from voxelinc/slot_groups_instead_of_indices

remove redundant slot declarations
removed unused method WorldLogic::addDamageImpact
merge with master
Merge branch 'damage_and_impulse_energy_fix' of github.com:voxelinc/voxellancer into damage_and_impulse_energy_fix