re #15289

log with non-integer value.

The converted text is stored in separate .rst files in the docs directory.
Refs #9562

Touches nearly everything unfortunately but is necessary.

DetectorDiagnostics is now a Workflow/Diagnostics algorithm and all
of its children are Diagnostics algorithms.

Refs #3984 Took the wiki description from every algorithm's wiki page and placed it in a comment in the CPP file (instead of the header file).

Add a copy constructor to Instrument. Oh, and go on a const-correctness hunt that led this commit to touch slightly more than just the one class. Re #1944.