Add toDict example to TableWorkspace concept page

Bugfix UpdateInstrumentDefinitions.OnStartup and loading Facilities.xml

The logic in the check was switched to be negative `or` rather
than negative `and`. The two people I showed the change to thought
that the phrasing in this PR was clearer.

Engineering Diffraction GUI enable loading and plotting runs in the new GSAS tab

Updated instrument definition files for MAPS

Add bibtex file for users

FindPeaksMD calculate Goniometer rotation for CW

(default monitors values have changed)

Current parameters modified to correspond to new IDF

Add option to calculate the Goniometer rotation (around y-axis only) for a constant wavelength source. This will allow only one instrument definition to be held while peaks can be found for multiple sample rotations.

Add V20 IDFs

Add deprecation doxygen to WorkspaceFactory methods.

Add dependency on PythonInterface