omniorb_4.1.4: merged native and non-native recipes

omniorb_4.1.4: merged native and non-native recipes

* removed the omniorb-native_4.1.4.bb file
* added DEPENDS_pn-omniorb = "omniorb-native" and DEPENDS_pn-omniorb-native +=
  "python-native" to handle different dependencies for native and target
  recipes, thanks to Vitus Jensen for guidance
* added NATIVE_INSTALL_WORKS = "1"
* added BBCLASSEXTEND = "native"
* added do_install_virtclass-native and converted do_stage from native recipe
  in the combined recipe
* bumped PR

Signed-off-by: Fahad Usman <fahad_usman@mentor.com>
Signed-off-by: Tom Rini <tom_rini@mentor.com>