EndDegree -- Option to specify the degree to stop computing killing cycles and acyclic closure

Functions with optional argument named EndDegree:

• acyclicClosure(...,EndDegree=>...) -- Option to specify the degree to stop computing the acyclic closure
• isAcyclic(...,EndDegree=>...) -- Option to specify the degree to finish checking acyclicity
• killCycles(...,EndDegree=>...) -- Option to specify the degree to stop looking for cycles
• liftToDGMap(...,EndDegree=>...) -- see liftToDGMap -- Lift a ring homomorphism in degree zero to a DG algebra morphism
• toComplexMap(...,EndDegree=>...) -- see toComplexMap -- Construct the ComplexMap associated to a DGAlgebraMap