feat: add IModel base interface

TestProject/RNG/model/IModel.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <cstddef>
+
+class ModelRegistry;
+
+class IModel {
+public:
+  virtual ~IModel() = default;
+
+  virtual float evaluate(size_t t_index)      { return 0.0f; }
+  virtual bool  evaluateBool(size_t t_index)  { return false; }
+  virtual void  linkPeers(ModelRegistry& reg) {}
+  virtual void  reset()                       {}
+};