Generalize block sparse matricize #321

Job	Run time
IntegrationTest (GradedArrays) / GradedArrays	4m 42s
IntegrationTest (QuantumOperatorDefinitions) / QuantumOperatorDefinitions	4m 43s
IntegrationTest (KroneckerArrays) / KroneckerArrays	4m 34s
IntegrationTest (ITensorBase) / ITensorBase	3m 20s
IntegrationTest (NamedDimsArrays) / NamedDimsArrays	4m 41s
IntegrationTest (FusionTensors) / FusionTensors	4m 43s
	26m 43s

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