[CORE] Change memory order for std::atomic_flag::test_and_set in FastCriticalSectionClass and ProfileFastCS (#1057)

Author: Caball009

Core/Libraries/Source/WWVegas/WWLib/mutex.h

@@ -184,7 +184,7 @@ class FastCriticalSectionClass
       BitSet:
         ;
 #else
-        while (cs.Flag.test_and_set(std::memory_order_acquire)) {
+        while (cs.Flag.test_and_set(std::memory_order_acq_rel)) {
             cs.Flag.wait(true, std::memory_order_relaxed);
         }
 #endif

Core/Libraries/Source/profile/internal.h

@@ -93,7 +93,7 @@ class ProfileFastCS
 
 	void ThreadSafeSetFlag()
 	{
-		while (Flag.test_and_set(std::memory_order_acquire)) {
+		while (Flag.test_and_set(std::memory_order_acq_rel)) {
 			Flag.wait(true, std::memory_order_relaxed);
 		}
 	}