Move dev tasks to devutils

[stsci-hack]

These tasks were written prior to 'devutils' being developed, and should be moved into that directory for dev use only, leaving the top level for end-user tasks only.

• config_testbed.py
• hapcatalog.py
• make_cofgobj_files.py
• run_config_utils.py
• run_hla_flag_filter.py
• run_hapsequencer.py
• hlautils/hla_flag_filter_HLAClassic.py
• hlautils/run_sourcelist_generation.py

[dulude]

hey @stsci-hack and @mdlpstsci, I'm working on this now.

[dulude]

development branch: https://github.com/dulude/drizzlepac/tree/hla515_move_stuff_to_devutils