Refactor and Re-organize Mappings

Here we try to include suggestions from:

#50
#51 
#38 
#84 
#86 
#87 
#89 

The UI is almost finished (the cell-editor for the property-mapping does not output colors yet)
but there are many bugs and it does not work completely.

Please try the version from here:
http://137.226.142.25:5080/wwwshare/VisiCutNightly/feature-new-mappings

and review the UI
I am aware of the fact that it does not work yet and I will fix the bugs, so no need to report any bugs (yet).