add hab name, prefix to logs; fix GracefulShutdownDoer to use KeyboardInterrupt instead of Doist.exit()

[kentbull]

This PR adds the following types of log message enhancements:

• uses the keria: prefix for log messages instead of keri:
• uses the asctime, levelname, and message log fields

For simpler multisig debugging

• some debug logs to ExchangeSender
• Within IdentifierResourceEnd adds logs starting with logger.info("[%s | %s...%s]: that use the name and AID of the hab, first and last 4 characters of the AID.
• Within Registrar adds logger.info("[%s | %s...%s]: style logs
• Within Anchorer adds logger.info("[%s | %s...%s]: style logs
• Within MultisigRequestCollectionEnd adds logger.info("[%s | %s...%s]: style logs
• Within ExchangeCollectionEnd adds logger.info("[%s | %s...%s]: style logs

[codecov[bot]]

Codecov Report

:x: Patch coverage is 66.40000% with 42 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 93.46%. Comparing base (676d7e8) to head (82db82c). :warning: Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/keria/app/agenting.py	55.95%	37 Missing :warning:
src/keria/app/serving.py	81.81%	2 Missing :warning:
tests/app/test_agenting.py	60.00%	2 Missing :warning:
src/keria/app/delegating.py	80.00%	1 Missing :warning:

:x: Your patch status has failed because the patch coverage (66.66%) is below the target coverage (75.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #363      +/-   ##
==========================================
- Coverage   93.80%   93.46%   -0.35%     
==========================================
  Files          37       37              
  Lines        8462     8548      +86     
==========================================
+ Hits         7938     7989      +51     
- Misses        524      559      +35     

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