Generalize block sparse matricize #323

Job	Run time
IntegrationTest (FusionTensors) / FusionTensors	1m 37s
IntegrationTest (NamedDimsArrays) / NamedDimsArrays	1m 29s
IntegrationTest (KroneckerArrays) / KroneckerArrays	1m 22s
IntegrationTest (QuantumOperatorDefinitions) / QuantumOperatorDefinitions	1m 23s
IntegrationTest (ITensorBase) / ITensorBase	1m 36s
IntegrationTest (GradedArrays) / GradedArrays	1m 34s
	9m 1s

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