Refs #9573.  Checkpointing work for docs of 2 algorithms.

1. CalculateZscore;
2. EstimatePDDetectorResolution
Refs #9573.  Checkpointing work with 2 more algorithms.

1. CreateLogTimeCorrection
2. FixGSASInstrumentFile with a new sample file
Edited 2 more algorithms' doc. Refs #9573.
Fixed 2 errors. Refs #9573.
Disable doctest while debugging.

Refs #9573
Refs #9573.  Edit 3 more algorithms and fixed 1 other.
Tried to fix the failure from build server. Refs #9573.
Fixed an error in usage. Refs #9573.
Fixed a python error. Refs #9573.
Corrected files' mode. Refs #9573.
Refs #9573. Edited 4 more algorithms' docs.
Corrected some auto-transferred doc. Refs #9573.
Refs #9573. Attempted to fix 3 usage tests error.
Removed extra output. Refs #9573.
Fix usage example test failures.

Problems were due to print statements that should be logger statements or
non-matching whitespace between expected/output statements for usage
tests.
Refs #9573
Merge remote-tracking branch 'origin/feature/9573_doc_usage_wz'