irr: Partial backport to expose pass setter

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@13007 178a84e3-b1eb-0310-8ba1-8eac791a3b58

lib/irrlicht/changes.stk

@@ -5,3 +5,4 @@ The following changes have been made:
 - drawall types
 - materialtype override
 - skies respect Z
+- partial backport to expose setCurrentRendertime in the scene mgr

lib/irrlicht/include/ISceneManager.h

@@ -1639,6 +1639,8 @@ namespace scene
 			current callbacks manager and restore the default behavior. */
 		virtual void setLightManager(ILightManager* lightManager) = 0;
 
+		virtual void setCurrentRendertime(E_SCENE_NODE_RENDER_PASS pass) =0;
+
 		//! Get an instance of a geometry creator.
 		/** The geometry creator provides some helper methods to create various types of
 		basic geometry. This can be useful for custom scene nodes. */