gras: work on global config that works on hier
gras: added thread pool to global config
gras: removed set_thread_pool, use the config
gras: per submodule for gr versions
gras: update submodules from gr shuffle
gras: py hier block minor hooks for basic block
gras: gr submodule updates and GR_TEST_PYTHON_DIRS cleanup
Merge branch 'config_work' into gr_update
gras: add GRDIR config hook + sm update
Merge branch 'gr_update'