Fix MSVTK packaging on mac

Packaging with bundling would be too complicated,
a simple TGZ package is fine.
However, the VTK and CTK libraries are not fixed up when packaging,
because they are imported libraries.
Ideally they should be installed by the Superbuild,
but CTK doesn't support it.
Instead, one needs to use a custom cmake to allow that:
diff --git a/Source/cmInstallTargetGenerator.cxx b/Source/cmInstallTargetGenerator.cxx
index 5f9b658..85d9546 100644
--- a/Source/cmInstallTargetGenerator.cxx
+++ b/Source/cmInstallTargetGenerator.cxx
@@ -518,10 +518,14 @@ cmInstallTargetGenerator
       {
       cmTarget* tgt = *j;

+      std::string fname;
       // The install_name of an imported target does not change.
       if(tgt->IsImported())
         {
-        continue;
+        fname = "lib";
+        fname += tgt->GetName();
+        fname += tgt->GetName()[0] == 'C' ? ".0.1.dylib" : ".5.10.dylib";
+        //continue;
         }

       // If the build tree and install tree use different path
@@ -533,8 +537,10 @@ cmInstallTargetGenerator
         {
         // The directory portions differ.  Append the filename to
         // create the mapping.
-        std::string fname =
-          this->GetInstallFilename(tgt, config, NameSO);
+        if (fname.size() == 0)
+          {
+          fname = this->GetInstallFilename(tgt, config, NameSO);
+          }

         // Map from the build-tree install_name.
         for_build += fname;
Fix warnings in msvQECGMainWindow.cxx