Mutex via Script Functions, better approach.

Added same functionality as wupMutexTS ThingShape but via Script Functions, as the ThingShape version had problems on ThingRestarts.

Documentation and Scripts signatures changes 0.1.27

v0.1.27

Documentation and Scripts signatures changes 0.1.27

Initial Version 0.1.25

Initial Version totally functional, includes two ThingShapes one to handle mutex like situations on a Thing basis and another to have a thread safe counter.