Generalize block sparse matricize #324

Job	Run time
IntegrationTest (FusionTensors) / FusionTensors	1m 35s
IntegrationTest (ITensorBase) / ITensorBase	1m 31s
IntegrationTest (GradedArrays) / GradedArrays	1m 29s
IntegrationTest (QuantumOperatorDefinitions) / QuantumOperatorDefinitions	1m 20s
IntegrationTest (KroneckerArrays) / KroneckerArrays	1m 16s
IntegrationTest (NamedDimsArrays) / NamedDimsArrays	1m 25s
	8m 36s

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