bCombat v0.17 DEV

* Units from grou+ps having a HOLD waypoint won't move around to
investigate
* Units now less aggressive in targeting out-of-sight threats in CQB
* Better pre-filtering out of some agents (animals, civilian) from CQB
routines, for lesser overhead
* Reduced default value for "bcombat_min_player_group_skill" (0.75 to
0.5)
* Reduced default value for "bcombat_cqb_radar_max_distance" (100 to 75
meters)
* Changed default value for "bcombat_cover_radius" ( [15, 15] to [15,
0])
* Enhanced mobility / maneuvering of groups under fire