[#66] Fixed MSVC unnoticed compiler bugs

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

include/vkcv/CommandStreamManager.hpp

@@ -6,6 +6,8 @@
 #include "vkcv/CommandRecordingFunctionTypes.hpp"
 
 namespace vkcv {
+	
+	class Core;
 
 	class CommandStreamManager
 	{

include/vkcv/Core.hpp

@@ -251,7 +251,7 @@ namespace vkcv
 
 		CommandStreamHandle createCommandStream(QueueType queueType);
 
-		void Core::recordCommandsToStream(
+		void recordCommandsToStream(
 			const CommandStreamHandle   cmdStreamHandle,
 			const RecordCommandFunction &record,
 			const FinishCommandFunction &finish);