feat: add network manager and GeometryOperator

src/Engine/Network/NetworkManager.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "Engine/Operator/GeometryOperator.h"
+#include "Engine/Types.h"
+#include <memory>
+#include <unordered_map>
+
+namespace enzo::nt {
+class NetworkManager
+{
+public:
+    bool addOperator();
+private:
+    std::unordered_map<enzo::nt::OpId, std::unique_ptr<enzo::nt::GeometryOperator>> gopStore_;
+    enzo::nt::OpId maxOpId_=0;
+
+};
+}