DiagonalStudentT distribution #160

Job	Run time
lint	1m 19s
test (ubuntu-latest, 3.10, jax)	5m 41s
test (ubuntu-latest, 3.10, tensorflow)	5m 18s
test (ubuntu-latest, 3.10, torch)	3m 49s
test (ubuntu-latest, 3.11, jax)	6m 18s
test (ubuntu-latest, 3.11, tensorflow)	6m 20s
test (ubuntu-latest, 3.11, torch)	4m 1s
test (windows-latest, 3.10, jax)	11m 42s
test (windows-latest, 3.10, tensorflow)	12m 57s
test (windows-latest, 3.10, torch)	10m 23s
test (windows-latest, 3.11, jax)	11m 58s
test (windows-latest, 3.11, tensorflow)	13m 9s
test (windows-latest, 3.11, torch)	10m 2s
	1h 42m 57s

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