feat: implementations of initial weapon inventory interface

modules/wave_survival/weapons/rifle.h

@@ -17,6 +17,9 @@ class Rifle : public WeaponBase {
 public:
 	void _notification(int what);
 
+	virtual bool allows_running() const override;
+	virtual void notify_selected() override;
+
 private:
 	float ads_factor{ 0.5f };
 	bool request_alt_mode{ false };