Introducde getDispatchLoaderStatic() to prevent dangling pointers in debug builds

tests/ArrayProxy/ArrayProxy.cpp

@@ -30,6 +30,9 @@ int main( int /*argc*/, char ** /*argv*/ )
 {
   try
   {
+    // to prevent a warning on unreferenced function vk::getDispatchLoaderStatic, use just one arbitrary vk-function
+    vk::enumerateInstanceVersion();
+
     // nullptr_t
     fct( nullptr );
     fctc( nullptr );