Missile Guidance - Add Copperhead M712

[PabstMirror]

Laser guided artillery round

• Can configure flight params via 3d object (wouldn't it be neat if certain radio mods allowed this)

Adds capability to missile guidance:

• Conditionally trigger a sub-munition (in this case it's launched as a shell and only extends wings at a pre-determined time, which triggers the original ammo and then continues the guidance on the new ammo object)
• Optionally use vanilla deflection via setMissileTargetPos

ToDo:

• [x] Testing
• [x] Localization
• [x] Warhead stuff (it's a small shaped charge, probably reduce size of explosion)
• [x] Tweak attack profile
• [x] Documentation

Hoping to use some of this as a basis for more clgp/gravity bombs

[jonpas]

(wouldn't it be neat if certain radio mods allowed this)

Absolutely, where is the PR!? :joy: