import bytes2human directly from stdatamodels

[braingram]

resample uses bytes2human from jwst.lib.basic_utils which imports this function from stdatamodels.jwst.library.basic_utils.

This PR updates the import to get bytes2human from stdatamodels directly and removes bytes2human and deprecate_class from basic_utils. These are internal functions that don't occur in basic_utils.__all__ or the docs. A follow-up PR will deprecate and eventually remove deprecate_class from stdatamodels.

Checklist for maintainers

• added entry in CHANGES.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant milestone
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR
• Make sure the JIRA ticket is resolved properly

[braingram]

Regression tests showed 2 unrelated errors:
https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1256/

[stable-deps] test_nirspec_missing_msa_fail – jwst.regtest.test_nirspec_exceptions4s
[stable-deps] test_nirspec_missing_msa_nofail – jwst.regtest.test_nirspec_exceptions

both related to missing log message likely due to stpipe logging

[nden]

romancal has a copy of this function. Move it to stcal?

[braingram]

romancal has a copy of this function. Move it to stcal?

(another) great idea :)

I opened an issue for stcal: spacetelescope/stcal#246

Once bytes2human is added to stcal a follow-up PR for jwst can update the import to use the function from stcal.