BR-Orbital2

Bombing Run conversion from original UT2003 map CTF-Orbital2. Changes from CTF-Orbital2:

-Added bomb and bomb spawn

-Removed CTF flags and added BR goals

-Added portals in upper hallways to facilitate game play

-Updated botpathing to include use of portals and BR support

-Updated location tags

-Moved damage amplifier to room below bomb spawn

-Moved supershield to platform above bomb spawn

-Defensive ball reset

-Lighting revisions