PKG: missing dll on windows package

Packaging/prepare_file_list.cmake

@@ -86,9 +86,11 @@ function(prepare_file_list file_list_result)
   
   # special case for msvc: ucrtbase.dll must be explicitly vetted.
   # for proj.dll, see Mantis-1424
+  # libEGL needed by Qt 5 at runtime
   if(MSVC)
     list(APPEND file_list "ucrtbase.dll")
     list(APPEND file_list "proj.dll")
+    list(APPEND file_list "libEGL.dll")
   endif()
 
   set(${file_list_result} ${file_list} PARENT_SCOPE)