metrics from full day waterfalls

[aewallwi]

This can be accomplished using baseline parallelization infrastructure that currently exists in hera_cal. I can move the core of this infrastructure to hera_qm (hera_cal depends on hera_qm) so that it can be used by both hera_cal and hera_qm.

[jsdillon]

Are you sure hera_cal depends on hera_qm? It does in the tests, and I think there are a few specific imports within functions, but there are also specific imports to hera_cal within hera_qm functions...