REIMPLEMENTATION grammata 0.2.0.1

implementing
    Grammata.Machine.Core.Logical

modified:   src/Grammata/Machine/Core/Expression.hs
modified:   src/Grammata/Machine/Core/Functional.hs
modified:   src/Grammata/Machine/Core/Imperative.hs
modified:   src/Grammata/Machine/Core/Logical.hs