MNT: serialize configs with exclude_defaults=True

[tangkong]

Expected Behavior

Should we serialize / save configs with exclude_defaults=True?
Pros: Conciseness
Cons: Opaqueness

Current Behavior

Currently we include all the defaults when we save a config

In other places we intend to exclude defaults, but never actually hit upon this code path

Possible Solution

• exclude defaults in

  atef/atef/widgets/config/window.py

  Lines 310 to 313 in a23ac31

  	return serialize(
  	type(tree.config_file),
  	tree.config_file,
  	)

• re-generate the test configs so round-trip tests don't fail

Context

musing as I poked around

Your Environment

pcds-5.7.3, atef v1.0.0