VectorizeBridge and ScalarizeBridge

[blegat]

• VectorizeBridge: AbstractScalarFunction-in-Union{EqualTo, LessThan, GreaterThan} -> AbstractVectorFunction-in-Union{Zeros, Nonpositives, Nonnegatives}
• ScalarizeBridge: AbstractVectorFunction-in-Union{Zeros, Nonpositives, Nonnegatives} -> AbstractScalarFunction-in-Union{EqualTo, LessThan, GreaterThan}