Delete .gitattributes and .gitignore
Added standalone JSONFormat version

Added a directory containing everything needed to run JSONFORMAT
standalone. This directory contains JSONFormat.exe and its complete
Python environment for running under Windows (no batch console will
opened).
To run JSONFormat, either execute to .exe file in the directory or
create a link (.lnk) for it at a place convenient for you.
You do not need a Python installation for this.