--Code changes

-Convert all enums to class enum to be consistent with C++11 style.
 -Convert some if/else statements in filter classes to case statements.
 -Add overloaded stream operators to print various enums.

Source/Ember/Renderer.cpp

@@ -1262,7 +1262,7 @@ EmberStats Renderer<T, bucketT>::Iterate(size_t iterCount, size_t temporalSample
 	{
 #endif
 #if defined(WIN32)
-			SetThreadPriority(GetCurrentThread(), m_Priority);
+			SetThreadPriority(GetCurrentThread(), int(m_Priority));
 #elif defined(__APPLE__)
 			sched_param sp = {0};
 			sp.sched_priority = m_Priority;