Add JET tests #1059

Job	Run time
DiffEqBase.jl/Downstream2/1	24m 7s
DiffEqBase.jl/Downstream/1	13m 18s
DiffEqBase.jl/Core/1	2m 12s
SciMLBase.jl/Core/1	7m 18s
DelayDiffEq.jl/Interface/1	9m 40s
OrdinaryDiffEq.jl/Core/1	13m 8s
OrdinaryDiffEq.jl/Interface/1	1h 56m 45s
DiffEqSensitivity.jl/Core/1	14m 29s
SciMLSensitivity.jl/Core2/1	30m 37s
SciMLSensitivity.jl/Core4/1	7m 10s
SciMLSensitivity.jl/Core5/1	2h 41m 13s
SciMLSensitivity.jl/Core3/1	38m 24s
LabelledArrays.jl/RecursiveArrayTools/1	6m 54s
SciMLSensitivity.jl/Core1/1	28m 28s
SciMLSensitivity.jl/Core6/1	1h 1m 43s
	8h 55m 26s

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