ODBC and MySQL connectivity with Root 6.36 (and beyond)

[Wile_E_Coyote]

@ferhue

If you build ROOT 6.36 from source, you will still have to enable them during the CMake command (and will get a deprecation warning).

The easiest way is to patch the unpacked ROOT 6.36 source code, e.g.:

sed -i -E -e '{s/(mysql|odbc|pgsql) OFF/\1 ON/}' root-6-36-00-patches/cmake/modules/RootBuildOptions.cmake