Have non-Windows build trees put their data files paralleling install trees.
Have non-Windows build trees put their data files paralleling install trees.

Should let us simplify logic, only one place to search.

OSVR/OSVR-Core,feilen/OSVR-Core,feilen/OSVR-Core,leemichaelRazer/OSVR-Core,OSVR/OSVR-Core,OSVR/OSVR-Core,OSVR/OSVR-Core,leemichaelRazer/OSVR-Core,feilen/OSVR-Core,leemichaelRazer/OSVR-Core,leemichaelRazer/OSVR-Core,feilen/OSVR-Core,OSVR/OSVR-Core,godbyk/OSVR-Core,feilen/OSVR-Core,godbyk/OSVR-Core,godbyk/OSVR-Core,OSVR/OSVR-Core,godbyk/OSVR-Core,leemichaelRazer/OSVR-Core,godbyk/OSVR-Core,godbyk/OSVR-Core