Updating Addons

Brg_Africa:
-Changed view geo lods on nearly all trees/plants
-Changed mass and damage type on Banana plants/trees
-Removed ArmA texture reference on jungle_old_twisted tree
-Minor cleanup, overlooked some rpt errors.
-Fix model bugs
-Added missing lods for the twisted jungle tree
-New more accurate viewlods for canopy trees
-Switch to ArmA II tree shaders