CM/CMX v3.4.2: added new reusable functions

Added several reusable functions from MLPerf automations:

• added utils.flatten_dict
• added utils.safe_int
• added utils.safe_float
• added utils.get_set
• added utils.digits

CM/CMX v3.4.1: added pyproject.toml to install CM and deprecated setup.py

V3.4.1

• added pyproject.toml to install CM and deprecated setup.py
• reduced Python min version in pyproject.toml to 3.7 for backwards compatibility

CM/CMX v3.3.4: several improvements

• added utils.path2: add quotes if spaces in path
• added utils.update_dict_with_flat_key: update dictionary via flat key (x.y.z)
• added utils.get_value_from_dict_with_flat_key get value from dict via flat key (x.y.z)
• added utils.load_module universal python module loader

V3.3.3: improving logging

• moved "CMX stack error" to -log
• improved CMX error reporting
• fixed CM logger issue

V3.3.1

• allow "cm/cmx pull repo {URL}" along with "cm/cmx pull repo --url={URL}"
• CMX: added "automation_full_path" to -log

CM/CMX v3.2.9: fixed minor bugs

• fixed minor bug with JSON console output
• fixed minor bug with console in cmind.x function

cm-v3.2.8: CM/CMX v3.2.8: fixed a few tests (#1340)

• fixed Docker test for mlperf-inference with cm4mlops
• made minor improvement in error handling and messages
• Fixed type of "unknown_keys" to list to be serializable: #1335
• Added support to print warning instead of error (useful for help)

CM/CMX v3.2.5: various improvements and bug fixes

• CMX: improved logging

• CMX: improved error handling (show module path and line number)

• CMX: fixed bug when detecting unknown control flag

• CMX: do not change output to json if -j or --json just print json in the end ...

• added --new_branch to cm pull repo and cm checkout repo

• fixed a bug in cm show repo (removed dependency on cm4mlops and used subprocess.check_output)

• fixed action help and flag -h to work with all automations: #1325

• added -f to the CMX core to be backwards compatible with CM commands like cm rm cache -f

CM/CMX v3.2.3: regular improvements and bug fixes

• added --new_branch to cm pull repo and cm checkout repo
• fixed a bug in cm show repo (removed dependency on cm4mlops and used subprocess.check_output)
• fixed action help and flag -h to work with all automations: #1325
• added -f to the CMX core to be backwards compatible with CM commands like cm rm cache -f

CM/CMX v3.2.0: many new features

I have added many important features to CMX pending for a very long time:

• added utils.test_input to test if input has keys and report them as error
• added prefix_cmx key to cmr.yaml to customize cmx pull repo
• improved CMX logging (-log and -logfile): #1317
• print control flags in help (cmx -h | cmx -help): #1318
• fail if control flag is not recognized: #1315
• added -repro flag to record various info to cmx-repro directory: #1319
• print call stack when error > 32 to be able to trace error cause: #1320
  can be combined with -log=debug and -logfile