add netxmib to oss2 structure
fix netxmib product for OSS2, \nset exact version for eclipse ui.ide,ui.navigator.resource to make sure the correct plugin version is picked up,\n -add missing plugins in the product feature, not to have many versions of the base features (i.e. xtext 2.60. requires xtend),\n -update the target platform for missing stuff like mwe