Adds a Python export for FileFinderUtils, the new object does not
include finding resource packs though, as the converter is registered at
a global scope in ExperimentInfo.cpp.

Moves multiple static file handling methods, such as FindFileX out of
ExperimentInfo into their own class

Moves the method for getting IPF Paths into Experiment info as a static
method, so it can be called internally and by Python APIs

Moves iterating through all directories where an IPF could be into the
method which looks this up. This means a caller can still pass a
directory hint, which we will look at first.

But afterwards we will iterate over instrument directories on their
behalf, avoiding them needing to do this

Merge pull request #28982 from mantidproject/update_double_pulse_analysis_to_allow_composite_functions

Add Core Unscripted Testing

Minor change to give newly added script tabs focus

Remove reversible masking

Add a sector shape to the instrument viewer

Raw data bugs in muon analysis

Add fitting capability to Eng Diff UI fitting tab

Add lower bound to Delta function in Indirect data analysis

Prevent workbench settings appearing off screen

Avoid changing behaviour of __round__ in numpy 1.19 in doc tests

In numpy 1.19 __round__ changed to be consistent
with the Python builtin round() function so that
an int is returned if no digits are passed.
Docs tests need to run with multiple Python
versions so we avoid this by explicitly specifying
how floats are printed rather than rounding them

Re #29021. Fix temporary workspace validation.

Co-authored-by: Harrietbrown <49688535+Harrietbrown@users.noreply.github.com>

Add missing imports from gcc 10