pybind11: support disabling LTO
LTO can take a long time and isn't important for local builds. Add a flag to allow developers to disable LTO when it isn't necessary.
Setting this locally should help avoid the long link times when building SMTK.
LTO can take a long time and isn't important for local builds. Add a flag to allow developers to disable LTO when it isn't necessary.
Setting this locally should help avoid the long link times when building SMTK.