expose tophat kernel connectivity and make n-false-postives a float

[McHaillet]

Basically as the title says. I exposed the tophat kernel connectivity to open it for possible tuning.

Closes #161 !

[github-actions]

File	Coverage		Missing
All files	81%	✅
src/pytom_tm/angles.py	94%	✅	44
src/pytom_tm/correlation.py	85%	✅	94-95 126
src/pytom_tm/entry_points.py	70%	❌	27 104-121 290-350 439-454 564-580 829-897 938-949
src/pytom_tm/extract.py	73%	❌	110-121 176-183 209-212 284-302
src/pytom_tm/io.py	48%	❌	15-19 25-28 34-37 43-46 52-55 62-66 74-87 93-100 107-114 129-131 184 218-219 261-263 279 295 312-321 341-346
src/pytom_tm/mask.py	80%	✅	70 85 94-95
src/pytom_tm/parallel.py	84%	✅	14-15 81-87 95-97 104 109 148
src/pytom_tm/plotting.py	16%	❌	20-22 25-32 36-44 48-51 54-70 73-74 77-78 98-103 119-127 133-150 165-173 177-194 198-206 210-217 223 229 234 248-398
src/pytom_tm/template.py	57%	❌	57-58 67 76-87 92-97 107-112 114
src/pytom_tm/tmjob.py	96%	✅	177-178 190 196-198 201 334 374
src/pytom_tm/utils.py	78%	❌	16-18
src/pytom_tm/weights.py	96%	✅	61 292-293 300 480 483 486

Minimum allowed coverage is 80%

Generated by 🐒 cobertura-action against c31e8aa

[sroet]

LGTM, feel free to merge