Add MILR - IR Pointer Rangefinder

[PabstMirror]

Demo Vid: https://youtu.be/kVWPkwXKfj0

IR Pointer that combines a rangefinder and ballistic computer

• When ranging the laser is aligned to bore
• After range the device computes a ballistic solution and aims the laser at the predicted impact point for that range
  IR Laser is aimed down, below the bore axis, making shooter elevate above the target based on ballistic arc.
• Device shows range and drop, so has uses during the day

How it works:

• Many varients with different laser mem points
• Switches between them based on ballistics
• Display is ui on tex (should only be on ViewPilot, so only shown in 1st person)

References:
Forgotten Weapons Short
https://www.bemeyers.com/milr

3d Model is not great, this may be a scope=1; "framework"