cmake Gadgeteer20 examples

OSVR/OSVR-Core cmake/FindVRJ30.cmake :134 

find_package(Gadgeteer20 ${_FIND_FLAGS})

supertuxkart/stk-code lib/wiiuse/cmake/FindVRJ30.cmake :134 

find_package(Gadgeteer20 ${_FIND_FLAGS})

shawwn/noh cmake/FindVRJ30.cmake :136 

find_package(Gadgeteer20 ${_FIND_FLAGS})