lots of changes

removed stdafx from server namespace
logger is now header only
added class stubs
added accessor classes and minor code in them
added nlohmann_json to includes
protocol switch back to 560 while we wait for next neolegacy release

Minecraft.Server/Access/ServerAccessor.cpp

@@ -0,0 +1,5 @@
+#include "ServerAccessor.h"
+
+ServerAccessor::ServerAccessor(std::string name, std::string path) {
+	this->storage = std::make_shared<GenericStorage>(name, path);
+}