Improve unit tests for Kernel::Matrix

More option on header output from ExportSampleLogsToCSVFile 

SliceView radius of integration is now circular

Update Facilities.xml with LR live data node

Muon analysis sequential fit: set file finder to correct instrument

Sanitization of Algorithm cancellation mechanics.

ChainableFactory Perfect Forwarding

re #15223

Default behaviour was to use Mantid's default instrument, which is wrong
when this differs to the instrument set via the drop-down list on the
front tab of the interface. Changed this to use the same instrument as that
of the workspace in the fit browser.

Enable ExportSampleLogsToCSV file to write header and data in same file

Use std::map::emplace(args...) and std::vector::emplace_back(args...)

- Fix setMem when setting for the first time

If setMem is called with number of rows, columns the same as existing,
nothing is done as the memory is assumed to already be set. Test if the
memory is set and, if it is not, set it for the first time.

- Rename functions to better reflect what they do

The functions "fDiagonal" and "bDiagonal" were very confusing, with the
comments talking about forward and backward diagonals. What they actually
do is nothing to do with that - they form a diagonal matrix from the given
vector and pre- or post-multiply the given matrix by that.

They are not used anywhere in the codebase (besides their own tests) and so
are a candidate for deletion anyway.

- Correct comment to match what function actually does (Ssize)

- Remove unused method (Faddeev)

- Throw instead of returning error code (GaussJordan)

note this function is not used anywhere

Fix slice viewer crash

EnggCalibrate: add output with the fitted (peak) parameters

Merge pull request #15187 from mantidproject/15155_Make_MDHW_getLinePlot_consistent_with_other_workspace_types

Improvements to 1D plots of MDWorkspaces

Improve CreateMD memory use and progress report

Refactor parsing of dimension names in MaskMD