TMOLimit -- Option to specify the maximum arity of the trivial Massey operation

Functions with optional argument named TMOLimit:

• findTrivialMasseyOperation(...,TMOLimit=>...) -- Option to specify the maximum arity of a trivial Massey operation, if one exists.
• isGolodHomomorphism(...,TMOLimit=>...) -- Option to specify the maximum degree to look for generators when computing the deviations