Updated pictures for SofQW docs - old bins should be parallelograms
Added equations for signal and error in Rebin and Rebin2D

Conflicts:
	Framework/DataObjects/src/FractionalRebinning.cpp
	docs/source/algorithms/SofQWNormalisedPolygon-v1.rst
	docs/source/algorithms/SofQWPolygon-v1.rst

Fixes suggested by cppcheck 1.82

`ConjoinXRuns` to support varying bins

ISIS Powder Mask out prompt pulses for HRPD

Fix complex run summation in MultiFileNameParser

Increase tolerance when running ISIS Powder HRPD system test on OSX

ISIS Powder allow offset files to live outside calibration directory

Bare bones of sphinx-based developer documentation

Re #21757

GSASIIRefineFitPeaks use multiple phase files

Fixes to codebase for MSVC 2017 

Add slits to the IDF of D17, ILL

Add 3d plots to workbench

Refs #21679

Refs #21679

Allow `SofQW` to rebin in energy and speed it up

Updated the Python script accordingly

Disable editing on Events and Settings Reflectometry GUI tabs during processing.

Adding automatic creation of all group/pairs for a workspace in muon analysis 

Beam Centre Finder Additional Features

further refacotring of common functions

Refs #21720

WIP: 3d line plots implementation

Refs #21720

remove tri_surf and ensure correct y axis values are used.

Refs #21720