added beginning of mutant explanation file

[sudoku-lord]

I'm a little unsure about a few things, such as whether I've correctly captured what the Queue.Intersection technique really means. I'm also not sure whether I should add any diagrams, or whether this verbal explanation is sufficient.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
__init__.py	0	0	100%
_utils.py	49	18	63%	12–15, 20, 22, 24, 46–47, 61–63, 65, 67–71
box.py	112	44	60%	38, 48–52, 60, 64, 67–69, 71–73, 75–77, 79–80, 82, 84, 93, 95, 104, 106, 115, 117, 126, 128, 132, 142, 199, 204, 210–211, 213, 218, 258–259, 279, 289–290, 299, 304
config.py	323	221	31%	89, 141, 159–164, 169, 173, 177, 183, 185, 191, 195, 202, 208, 215, 217, 223, 229, 235, 240, 246, 252, 259–260, 265–273, 277–284, 289–299, 304–319, 321, 325, 327–329, 331–333, 335, 337, 341–363, 365–377, 379–387, 389–398, 400–420, 422–424, 427–433, 435–444, 446–448, 457–459, 465–469, 471, 473, 475–476, 478–479, 481–482, 486–487, 489–490, 492–493, 496, 498, 500–501, 505–508, 512, 519, 521–523, 525, 527, 529, 531–532, 534
database.py	122	65	46%	28–29, 43–45, 63–64, 66, 68, 86–99, 101–102, 113, 116, 123–124, 127, 129, 200–211, 213–214, 216–223, 225–227, 229–232, 236–240
distributions.py	51	37	27%	12–13, 15–16, 18–19, 21–23, 27–30, 35–37, 39, 45–46, 49, 54–62, 69, 72, 77–79, 81–82, 84
evaluation.py	63	48	23%	17, 21–22, 24–26, 31–32, 39–42, 44, 46, 49–50, 52–53, 55–56, 59, 62–63, 65–67, 69–72, 78, 85, 88, 92–95, 97–98, 100, 103, 107, 116–120, 123
explanation.py	151	49	67%	57–58, 79, 137–138, 165, 245–249, 251, 253, 255, 257, 264, 304, 311–312, 314–315, 318–319, 321–322, 325–326, 328–329, 332–333, 388, 415, 417, 419–420, 423, 426–435, 438, 442
extraction.py	128	34	73%	28, 35, 42, 57, 59–60, 83, 86, 104, 160, 168–169, 172, 184, 188–193, 200–203, 206–207, 214, 217–218, 225, 228–230, 232
input_data.py	146	40	72%	46–47, 63, 78–80, 82–83, 87, 111–112, 114–115, 118–123, 127–132, 141, 144, 148, 165, 171, 177, 179, 188–195
logger.py	14	7	50%	11–16, 18
multi_explanation.py	23	12	47%	16–18, 22–26, 29, 32–33, 37
mutant.py	91	31	65%	9–10, 49–50, 52–53, 79, 90, 99, 126, 129–132, 134–135, 138, 140–144, 146, 148–153, 155–156
occlusions.py	20	16	20%	9, 24–25, 29, 31–40, 42, 44
onnx.py	82	38	53%	32, 39, 48, 50–51, 53–54, 73–75, 81–82, 84–87, 90–92, 94–95, 104–105, 107, 116–117, 124–128, 131, 133–135, 138, 162–163
prediction.py	35	6	82%	28, 32, 35, 38, 52–53
resp_maps.py	86	15	82%	10–11, 32–33, 43, 46, 66, 90–91, 109, 113–116, 119
responsibility.py	131	37	71%	15–16, 45, 76, 78–90, 96, 98, 161–162, 183, 199, 205–207, 227–229, 233, 263–264, 267–268, 271, 283, 285
rex.py	14	14	0%	3–5, 7–8, 11, 13–14, 16, 18, 20–22, 24
visualisation.py	214	192	10%	24–26, 28–42, 44–52, 54–60, 62–63, 65–66, 68, 75–77, 79–81, 83, 86, 92–95, 99–101, 104–112, 114, 119, 125, 127–132, 134–137, 139, 144–150, 152, 154–156, 160–168, 170–171, 173–175, 179, 181, 183–184, 186, 188, 198–199, 201, 211–212, 215, 217, 222–225, 227, 230, 237, 240, 247–252, 254–259, 261–263, 265–269, 271, 273–274, 276, 280, 282–284, 286–288, 290–291, 293–295, 297, 299, 303–306, 310, 312–317, 320, 322–325, 328–330, 332–336, 338–339, 341–342, 344–345, 347
TOTAL	1855	924	50%