Add Roman jump detection to ramp fitting (#215) #1349

Job	Run time
check / Load tox environments	8s
data / path	2s
test / Load tox environments	12s
data / webbpsf_path	2s
check / check-security (ubuntu-latest)	21s
data / download and cache WebbPSF data	0s
data / retrieve latest data cache key	3s
test / py39-oldestdeps-cov-xdist (ubuntu-latest)	2m 45s
test / py39-xdist (ubuntu-latest)	3m 3s
test / py310-xdist (ubuntu-latest)	2m 31s
test / py311-xdist (ubuntu-latest)	2m 20s
test / py311-xdist (macos-latest)	3m 30s
test / py3-cov-xdist (ubuntu-latest)	3m 51s
test_downstream	0s
	18m 48s

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