Improve wiki re #6896

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Add skeleton unit test re #6896

Just tests initialization of the algorithm.

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Add test of file properties re #6898

and actually include the ModifyDetectorDotDatFileTest.h

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Add all testing but contents of output file re #6986

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Test header of Output file re #6896

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Modify and simplify test file re #6896

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Check start of 3rd line of output file re #6896

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Test some of output file contents re #6896

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>
Merge remote-tracking branch 'origin/feature/6896_new_unit_test'