REIMPLEMENTATION grammata 0.2.0.1

implemented
    Grammata.Machine.Core.Functional
    Grammata.Machine.Core.Expression
    Grammata.Machine.Core.Imperative

began
    Grammata.Machine.Core.Logical

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