EQSANS adjust detector bank position when loading the instrument

Rewrite the HB3A IDF

Almost entire rewrite, simplfy everything. Use the det_trans log value instead of hard coded value. Remove all the cal:: values, the calibration will be set in the IDF. Correct the detector positions relative to the beam (centered on pixel (256, 268) and the calibrated detector gap of 5mm.

Make c++ interfaces not children of workbench

Change push_back to emplace_back where possible

All c++ interfaces in the indirect submenu are children of workbench so that only one instance of the settings menu can be made.

Fix issue with scripts containing unicode characters on unix systems

Handle point/binned numeric axes in workbench data table.

Scripts containing unicode characters could fail to run if mantid was
not started from the terminal on unix systems. The script runs fine
if this exception is caught and discarded.

Remove workbench from being a parent of cpp classes so they are minimized are raised correctly
Indirect settings is a special case and should remain as a child so it is treated as a separate case

Queries length of workspace to check if the axis is actually
bins or point values.

Co-Authored-By: Conor Finn <47181718+ConorMFinn@users.noreply.github.com>

Release notes 4.2 final fixes

Fix legend resetting after clearing fit curves

As requested @martyngigg

Recatagorised muon fitting functions

Fix crash when setting max cores lower than machine cores on Linux

Add Poisson documentation

With the addition of many new muon fitting functions it was asked that they be re-categorised to make finding relevant ones easier.

Catch save ascii from menu error

Add 16 new fitfunctions

Allow Scripts Containing Encoding Declarations to be Loaded and Run in Workbench