Refs #16578

For thin samples the number of sample elements ends up quite high
and simulating each wavelength is unrealistic.

This commit adds a catch for if the workspaces or q_lims file have an infinite range

Re #27444

This commit fixes missed line that would allow the index for the max range spectra
to be updated

Re #27444

This commit moves the code for reading the supplies q limits into its own function.
This also fixes a bug that cause an error when trying to read a lim file path that is in
a unicode format.

Re #27444

This commit changes the previously hard coded index for matching spectra to
instead use the workspace with the larges range of x values as these produces the
smoothest match around the edges of the workspaces data.

Re #27444

This commit changes the usage of ConjoinSpectra to a loop using ConjoinWorkspace.
This is done because using ConjoinSpectra the focused workspace can have a
mismatch between specnumbers and index

Re #27444

Allows for more control rather than hard coding the range.
Changes the default to integrate over the whole range as requested
by A Gibbs.
Adds a system test including the solid angle corrections
Refs #27238

Squashed Commits:
RE #27054 Add to release notes

RE #27054 Fix flake8 error

RE #27054 Add cropping using single tuple

If a single tuple is supplied for the cropping values then the
specified range is applied to all banks.

RE #27054 Amend config params to use fractional cropping

RE #27054 Switch to using collections Abstract Class

Using the abstract class allows for numpy arrays and other sequence
types to be used to store the tuples of max and min values for cropping.

changes two if statments into a single with an &&, changed const to constexpr,
and changed added strings into os.path.join

previous filename used POL+run_number, now loads
POLARIS+run_number_.nxs

this commit cehckes the position of monitor detectors for extraction
before use with FitIncidentSpectrum in _calculate_self_scattering_correction

as q_lims is a required paramiter for the function it would raise an error
if trying to run without it, even when it is not needed for merge_Banks=false
this change automaticaly sets q_lims to none when none is given as kwargs

CalculatePlaczekSelfScattering outputs non-distrebution workspace
correction to CalculatePlaczekSelfScattering algorithm and POLARIS
_generate_grouped_ts_pdf function makes self scattering correction
to the correct order of magnetude after processing

CalculatePlaczekSelfScattering outputs non-distrebution workspace
correction to CalculatePlaczekSelfScattering algorithm and POLARIS
_generate_grouped_ts_pdf function makes self scattering correction
to the correct order of magnetude after processing

Placzek correction will be covered in issue #26986

Also fixes FitIncidentSpectrum.py and CalculatePlaczekSelfScattering so
that output workspace has same x units

this calculates a background based on the mean value of the flatist 5 percent
of the fitted incident spectrum, based on the first derivitive