fixed NRE in ray callback (fun combo of target closest + target grid center)

NRE chasing in NormalShootRayCallBack

Code cleanup

- Added new weapon cfg option in "Other": AllowScopeOutsideObb. By default the LoS check origin is adjusted to be inside the weapon block bounds, setting this true uses the actual scope position. (coreparts structure update needed for modders)
- Changed CastRayParallel calls to CastRay. Delays for LoS checks should be eliminated and false-positive firing at terrain or friendlies should be further reduced
- Fixed a bug with LoS on weapons that target grid center, if there was nothing at the center of the grid the ray would return a false miss and the weapon would give up that grid target
- Added additional weapon debug draws for the scope and scope forward (yellow ball at scope and line)

- Reduced planetary voxel prefetch time from 90 to 10 ticks, should eliminate "twitching" weapons when they are following your mouse across voxel
- Weapons in Test Mode (Override) will no longer wait for LOS ray check callbacks
- Default character damage fixed to match notes in DamageScales. Would erroneously default to zero instead of 1

Fix for NRE on race condition of placing a new wep on a CTC, if the CTC didn't init in time

Touchup to LOS checks for cases where long prefire or postfire events were impacted by waiting for LOS callback.

(excluding point defense against projectiles) from the delay for LOS checks