Fixed a bug - library dirs of modules were not read at all.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Driver.cs

@@ -230,8 +230,8 @@ namespace CppSharp
                 foreach (var undefine in module.Undefines)
                     options.addUndefines(undefine);
 
-                foreach (var library in module.Libraries)
-                    options.addLibraryDirs(library);
+                foreach (var libraryDir in module.LibraryDirs)
+                    options.addLibraryDirs(libraryDir);
             }
 
             return options;
@@ -267,9 +267,14 @@ namespace CppSharp
 
         public bool ParseLibraries()
         {
-            foreach (var library in Options.Modules.SelectMany(m => m.Libraries))
+            foreach (var module in Options.Modules)
             {
-                if (this.Symbols.Libraries.Any(l => l.FileName == library))
+                foreach (var libraryDir in module.LibraryDirs)
+                    Options.addLibraryDirs(libraryDir);
+
+                foreach (var library in module.Libraries)
+                {
+                    if (Symbols.Libraries.Any(l => l.FileName == library))
                         continue;
 
                     var parser = new ClangParser();
@@ -285,6 +290,7 @@ namespace CppSharp
                         res.Library.Dispose();
                     }
                 }
+            }
 
             return true;
         }