Support of IsKeyPressed that only trigger for the frame it is pressed on.

JulietApp/main.h

@@ -20,7 +20,7 @@ class JulietApplication : public Juliet::IApplication
   protected:
     void Init(Juliet::NonNullPtr<Juliet::Arena> arena) override;
     void Shutdown() override;
-    void Update() override;
+    void Update(float deltaTime) override;
     bool IsRunning() override;
 
     Juliet::Window*         GetPlatformWindow() override { return MainWindow; }