REIMPLEMENTATION grammata 0.2.0.12

implemented functional core language
    Grammata.Machine.Core
    Grammata.Machine.Core.Functional

to implement
    case ... of ... statement and expression in imperative and functional core language.

modified:   src/Grammata/Machine/Core.hs
modified:   src/Grammata/Machine/Core/Class.hs
modified:   src/Grammata/Machine/Core/Functional.hs
modified:   src/Grammata/Machine/Core/Imperative.hs
modified:   src/Grammata/Machine/Storage/Functional.hs
modified:   src/Grammata/Machine/Storage/Imperative.hs