Refs #9587 - Docs for SaveNISTDAT.
Refs #9587 - Docs for SANSWideAngleCorrection.
Refs #9587 - Docs for LoadInstrumentFromRaw.
Refs #9587 - Docs for LoadRawBin0.
Refs #9587 - Docs for LoadInstrumentFromNexus.
Refs #9587 - Docs for ChopData plus amendments.
Refs #9587 - Docs for ConvertSpectrumAxis V1.

Shamelessly steal from Martyns V2 docs.
Refs #9587 - Docs for MergeRuns.
Refs #9587 - Silence warnings.
Merge branch 'feature/9587_alg_documentation' into develop