This is more standard and removes the possibililty
of users to accidentally overriding the set of python
paths required by many interfaces to start.
The pythonscripts.directories config key is now empty by
default and only adds directories on starting the framework.

make sure muon analysis is not available to the user

re #23102

re #23102

Re #22263

- Based of dataprocessorinterface.
- Updated build config.

Re #22263

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Link it to MantidPlot Interfaces menu

Now the set of library names to be excluded is a first class parameter
to the method and can be controlled externally.
Refs #0

Now the set of library names to be excluded is a first class parameter
to the method and can be controlled externally.
Refs #0

Windows needs the DLLs and executables to be in the same directory
or it can't find the dependencies. This can be solved if running through
a wrapper script but the IDE calls th .exe directly and not allowing
this would degrade the developer experience alot.
This only affects the developer build and not the installed locations.
Refs #20288

re #21141

re #20746