KT-4568: Created the ConvertNegatedBooleanSequence intention. This intention takes an expression of the form !a &&,|| !b &&,|| ... and converts it to the DeMorgan equivalent !(a &&,|| b ...).
KT-4568: Created the ConvertNegatedExpressionWithDemorgansLaw intention. Converts an expression of the form !(a &&,|| b) to its expanded equivalent under DeMorgan's law.