new yaml schema, new TODO

TODO.md

@@ -1,5 +1,4 @@
 # TODO:
-
 - fold_slice:
     - load diffractions / hdf5 files; change only param per job
     - restructure `FoldSlicePtychoEngine.__init__()` to load data but not params
@@ -17,10 +16,9 @@
 - change job.sub to job.sh
     - dynamic jobname
     - pre-check result directory
-- clean up examples for Si-FIB paper version
 
 # TODAY:
-- rename `BOEngine` to `Sampler`
+- change yaml schema, use stages in config-new.yaml
 - separation of available GPUs and parallel sample batches
 - prepare next batch for efficient GPU use