Re: [3/4]winemaker: add workspace-parse function

[Francois Gouget]

This one is wrapped also (which is only logical).

There are two other problems:
 * there's the same case sensitivity issue as in the project parsing 
   code. Using search_from() in the same way should fix it.

* also it assumes that the project file is in the current 
   directory. In other words, the following does not work:

winemaker Chap03/HelloWin/HelloWin.dsw