replaced an include with a forward declaration

apps/openmw/mwscript/locals.cpp

@@ -1,8 +1,11 @@
 #include "locals.hpp"
 
+#include <components/esm/loadscpt.hpp>
+
+#include <components/compiler/locals.hpp>
+
 #include "../mwbase/environment.hpp"
 #include "../mwbase/scriptmanager.hpp"
-#include <components/compiler/locals.hpp>
 
 namespace MWScript
 {

apps/openmw/mwscript/locals.hpp

@@ -3,9 +3,13 @@
 
 #include <vector>
 
-#include <components/esm/loadscpt.hpp>
 #include <components/interpreter/types.hpp>
 
+namespace ESM
+{
+    struct Script;
+}
+
 namespace MWScript
 {
     class Locals