Update Visual C++ 2008 projects

Update Visual C++ 2008 projects

Make the "install" project depend on the glib-compile-resources gresource
projects so that these tools will be indeed installed.  Missed that in my
last commit-oops.

Also make the "install" project not to depend on the testglib project as:
-the test program in the project is not an exhausive test of the GLib
 libraries
-One may want to use the project to compile different test program(s), so
 it might be better to keep the project but not "install" the resulting
 .exe