Add Visual Leak Detector (VLD) support to GEOS core
* Add MSVC_VLD_DIR option to nmake.opt to enable/disable VLD
* Add optional #include <vld.h> to Geometry.cpp

git-svn-id: http://svn.osgeo.org/geos/trunk@3794 5242fede-7e19-0410-aef8-94bd7d2200fb
Add missing directories

git-svn-id: http://svn.osgeo.org/geos/trunk@3795 5242fede-7e19-0410-aef8-94bd7d2200fb