Core/Logging: Performance-related tweaks to logging system

All sLog->out* functions (except outCommand atm) are replaced with TC_LOG_* macros.
    Memleak fix

src/server/scripts/Commands/cs_reset.cpp

@@ -92,7 +92,7 @@ public:
         ChrClassesEntry const* classEntry = sChrClassesStore.LookupEntry(player->getClass());
         if (!classEntry)
         {
-            sLog->outError(LOG_FILTER_GENERAL, "Class %u not found in DBC (Wrong DBC files?)", player->getClass());
+            TC_LOG_ERROR(LOG_FILTER_GENERAL, "Class %u not found in DBC (Wrong DBC files?)", player->getClass());
             return false;
         }