Add Node-webkit application jeforth.3we/jeforth.3nw

To run jeforth.3we Node-webkit version. Edit and Run
~/jeforth.3we/jeforth.3nw.bat (edit path for your computer in prior).
<comment> and traditional forth ( ... ) comments are now support nested
structure, balance is needed. Other than kernel (jeforth.js, jeforth.f,
and voc.f), many HTML and Node.js common things are shared by multiple
applications. kvm.path specifies the .f file searching priority when
including.