360 relaxometry task report

[sophie22]

Potential fix for #360 by partially refactoring the relaxometry task to be closer aligned with other tasks, and especially fixing the way report images are generated and saved, rather than attempted to be displayed.

[sophie22]

various tests are failing as expected. Will update the hazenlib test so that CLI args align with what is now expected to be provided for the task and will look into the relaxometry unit tests too.

[sophie22]

I am unable to run the T2 calculation on my laptop due to a Bus error, it is not expected to have been introduced with these code changes. - will investigate further

[github-actions[bot]]

Coverage Report

File	Stmts	Miss	Cover	Missing
hazenlib
HazenTask.py	25	3	88%	32–34
__init__.py	54	17	69%	125–133, 145, 179–181, 184–186, 193–196, 207
exceptions.py	21	4	81%	17–21
relaxometry.py	310	85	73%	251–269, 626, 684–686, 740, 788–810, 828–843, 1153–1156, 1165–1171, 1203–1247
utils.py	189	43	77%	61, 65, 75, 80, 117, 124–129, 140, 143–150, 170–172, 190–192, 211–213, 222, 227, 233, 284, 287, 295–300, 303, 346, 355, 371
hazenlib/tasks
acr_geometric_accuracy.py	146	56	62%	38–75, 179–195, 209–233
acr_ghosting.py	117	43	63%	33–55, 93–95, 125–127, 163–196
acr_slice_position.py	155	54	65%	53–76, 154, 215–260
acr_slice_thickness.py	154	64	58%	40–62, 188–243
acr_snr.py	141	62	56%	34–78, 103, 172–182, 215–228, 261–274
acr_spatial_resolution.py	244	74	70%	66–90, 169, 212, 225–234, 323–378
acr_uniformity.py	90	33	63%	34–56, 123–140
ghosting.py	152	53	65%	18–35, 50, 112–113, 117, 127–128, 154–156, 173–175, 221–259
relaxometry.py	7	7	0%	1–11
slice_position.py	117	23	80%	28, 37–38, 49, 103–104, 130, 210, 217–234
slice_width.py	357	53	85%	34–37, 41, 109, 168–188, 453, 458–459, 465, 470, 532–533, 782–823
snr.py	166	67	60%	51, 68–73, 167–185, 200–209, 227–237, 264–274, 279–289, 320–333, 338–346, 375–388
snr_map.py	104	1	99%	291
spatial_resolution.py	247	45	82%	36–39, 43, 64, 149, 208, 334–370
uniformity.py	79	20	75%	42–45, 51, 93–94, 101, 135–149
TOTAL	2891	807	72%

Tests	Skipped	Failures	Errors	Time
215	0 :zzz:	0 :x:	0 :fire:	3m 24s :stopwatch: