As a first step for switching from TCMalloc to JEMalloc as the custom
memory allocator, this commit removes every instance of the flag
TCMALLOC_LIBRARIES_LINKTIME in all the CMakeList.txt files. This flag
was never used by the code, so this commit is invisible project-wise.

Correct updating issues in muon analysis with current dataset index and result tab function

Added a deselect all elements button to elemental analysis gui

Add Troubleshooting Steps for diagnosing failed launch

Implement multi-period loading in LoadMuonNexusV2

Update line color selection in muon analysis

Add common workbench launcher executable to harmonise startup code

Add PythonNotebook.rst to Concepts category

Fixed template header file in algorithm dev docs

Currently we generate a visual-studio.bat file
to set the PATH variable to include the third
party directory and then start the IDE. This
avoids having to set user/system-wide environment
variables that could conflict with other things
on developer machines.

These changes set the relevant paths on the targets
such that the generated solutions can then be used
standalone. The visual-studio.bat file has been left
as it is as backup for now. It will likely be removed
in the future.

The startup scripts for macOS/Windows are nearly indentical.
Harmonising them lowers the maintenance burden. To be portable
a simple executable has been created that performs the tasks
of the old launch scripts.

On Windows this has the advantage of removing the .exe that
was 'compiled' by powershell and flagged as a virus by some
scanners such as McAfee. It also removes any requirement for
the .NET framework to be available.

The error reporter code has been moved to mantidqt and gained
a main module that can be invoked with -m, thereby greatly
simplifying finding and starting the dialog.

Easier to access from the command line than having to
know where the bundle is located.

Removes requirement to set PYTHONPATH in launch
scripts. mantid is then directly importable
without using mantidpython

Allows the location of the installed Python packages
to be updated more easily in the future. This is not
so easy while currently bundling MantidPlot/MantidWorkbench
together but once MantidPlot disappears it will allow
modification of the packaged location more easily.

Also introduces a CMake variable to define the tag
used by the dynamic loader to identify the path of the
loading resource. Reduces copy and paste of setting
RPATH entities in the Python framework

We want the mac bundle to just appear to be workbench
but as we start Python to do this the application name
on mac (next to the Apple logo) displays Python if
these files are left in. Starting Python standalone from
the terminal ignores these files anyway so they are of
no use to us.

Fix crash importing mslice cli in workbench

Always use selected workspace in sliceviewer and don't dynamically bin MDHistoWorkspace

This adds basic color tracking to MuonAnalysis plots so that new lines are plotted using the first unused color in the colormap. This was required so that plots came out with consistent colors when re-plotted and when workspaces were removed.

I debated the best place to put the color_queue and eventually decided it belonged in the view, despite normally trying to keep this as simple as possible as none of the other sections of the code currently care about the color of the lines plotted and it added substantial complexity to put it elsewhere.

Previously the currentDataset of the FunctionBrowser did not update if there was no function present. This led to the displayed workspace and the function browser current dataset getting out of sink. This updates the current dataset whan a new function is added to get around this issue.

The results tab was being informed that a fit was finishing via two different routes. First the model was updating the selected fit function and then the presenter was updating the selected fit function and the displayed fits. These two signals were not both uneecary and were interfering with each other so have removed the signal in the model

Merge pull request #29129 from mantidproject/27275_add_alias_to_GeneratePythonScript_as_ExportHistory_and_add_metadata_to_script

+ clang format

Merge branch 'master' into 27275_add_alias_to_GeneratePythonScript_as_ExportHistory_and_add_metadata_to_script

- Refactor LoadMuonNexusV2Helper into a separate class
- Avoid passing shared pointers around if ownership is not being considered
Remove unused variable

Co-authored-by: DanielMurphy22 <daniel.murphy@stfc.ac.uk>

Removes functionality that would cause the sliceviewer
to actually use an attached original workspace if
one existed. This made the dynamic rebinning easier
but causes confusion when you bin to non-axis aligned
system and the sliceviewer refuses to show it.

This does remove dynamic rebinning for MDHisto workspaces
and this will be renabled in the future via a different
mechanism. For now the sliceviewer is useless on MD
workspaces that have been binned and sacrificing dynamic
binning is worth it temporarily