first upload of the pure css skeleton with menu's left, top and right

Two versions of the webapp living in the repo: the first and 'naked' version is this.
A new project can be started with the index.html and the webapp_skeleton.css. For sure there some default colors to don't ship a nasty version. The menues are colored with high contrasts.
preparing a more eye-candy demo version of the webapp

Aside to the 'naked' skeleton a little demo should demonstrate the capabilities in real situations.
The commit adds webfonts, styles, icons and some pics.