iox-#828 Add CMAKE_INSTALL_RPATH to iceoryx_meta
iox-#828 Add CMAKE_INSTALL_RPATH to iceoryx_meta

If iceoryx is built as shared lib we need to set an rpath
to the installed shared libs so that roudi can find them.

eclipse-iceoryx/iceoryx,eclipse-iceoryx/iceoryx,eclipse-iceoryx/iceoryx,eclipse-iceoryx/iceoryx