Implementation of the multinomial generalized linear model (softmax link) #5427

Job	Run time
mix fun and prob tests 2 (windows-latest)	52m 0s
mix fun and prob tests 1 (windows-latest)	46m 0s
mix fun and prob tests 1 (windows-11-arm)	43m 48s
mix fun and prob tests 3 (windows-11-arm)	39m 34s
mix fun and prob tests 4 (windows-11-arm)	34m 12s
fwd tests (windows-11-arm)	9m 18s
mix fun and prob tests 5 (windows-latest)	3h 1m 21s
mix fun and prob tests 4 (ubuntu-24.04-arm)	26m 55s
mix fun and prob tests 2 (ubuntu-24.04-arm)	40m 43s
mix fun and prob tests 3 (windows-latest)	40m 26s
mix fun and prob tests 4 (windows-latest)	36m 52s
mix fun and prob tests 5 (windows-11-arm)	2h 44m 6s
misc tests (windows-11-arm)	7m 44s
rev tests (windows-11-arm)	26m 24s
mix fun and prob tests 2 (windows-11-arm)	42m 8s
mix fun and prob tests 3 (ubuntu-24.04-arm)	30m 34s
non-fun mix tests (windows-11-arm)	10m 37s
misc tests (windows-latest)	5m 36s
mix fun and prob tests 5 (ubuntu-24.04-arm)	2h 42m 18s
prim tests (windows-11-arm)	54m 28s
prim tests (ubuntu-24.04-arm)	43m 47s
misc tests (ubuntu-24.04-arm)	3m 48s
fwd tests (windows-latest)	9m 54s
non-fun mix tests (windows-latest)	11m 41s
non-fun mix tests (ubuntu-24.04-arm)	5m 53s
rev tests (ubuntu-24.04-arm)	21m 29s
mix fun and prob tests 1 (ubuntu-24.04-arm)	31m 16s
rev tests (windows-latest)	46m 44s
prim tests (windows-latest)	1h 42m 50s
fwd tests (ubuntu-24.04-arm)	4m 40s
	22h 17m 6s

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