Adding a few new sprites and effects making missiles look prettier.
Improvements:
* New missile flare/trail for a few missiles and rockets.
* Effects for Erader Anti-missiles.
* New projectile sprites for some Ultaka weapon and Kroom blaster.
Fixes:
* Prevent Kroom-Gargoor'an battle from ending before player arrive
* Add trade to Kumakk space to prevent negative commodity price.
* Fix wrong hardpoint direction for a few ship (Dels Darca, Kroom Mugildor)
* Fix a few invisible missions.
* Added Akralva Arziao torpedo storage outfit.
