added inheritance test case
added inheritance test case

joshmarinacci/aminogfx-gl,cbratschi/aminogfx-gl,joshmarinacci/aminogfx-gl,joshmarinacci/aminogfx-gl,joshmarinacci/aminogfx-gl,joshmarinacci/aminogfx-gl,cbratschi/aminogfx-gl,cbratschi/aminogfx-gl,cbratschi/aminogfx-gl,cbratschi/aminogfx-gl