Finished base for new datamodel

Instance.h

@@ -10,6 +10,13 @@ public:
 	Instance* parent;  // Another pointer.
 	std::vector<Instance*> children; // All children.
 	std::string getClassName();
+	Instance* findFirstChild(std::string);
+	std::vector<Instance* > getChildren();
+	std::vector<Instance* > getAllChildren();
+	void setParent(Instance*);
+	void addChild(Instance*);
+	void removeChild(Instance*);
+	Instance* getParent();
 protected:
 	std::string className;
 };