[LYN-4390] Implemented EditorCameraRequestBus::GetActiveCameraState on the EditorViewportWidget so that the "Create camera entity from view" action works again.

Code/Sandbox/Editor/EditorViewportWidget.cpp

@@ -2664,6 +2664,18 @@ bool EditorViewportWidget::GetActiveCameraPosition(AZ::Vector3& cameraPos)
     return false;
 }
 
+bool EditorViewportWidget::GetActiveCameraState(AzFramework::CameraState& cameraState)
+{
+    if (m_pPrimaryViewport == this)
+    {
+        cameraState = GetCameraState();
+
+        return true;
+    }
+
+    return false;
+}
+
 void EditorViewportWidget::OnStartPlayInEditor()
 {
     if (m_viewEntityId.IsValid())

Code/Sandbox/Editor/EditorViewportWidget.h

@@ -184,6 +184,7 @@ public:
     void SetViewAndMovementLockFromEntityPerspective(const AZ::EntityId& entityId, bool lockCameraMovement) override;
     AZ::EntityId GetCurrentViewEntityId() override { return m_viewEntityId; }
     bool GetActiveCameraPosition(AZ::Vector3& cameraPos) override;
+    bool GetActiveCameraState(AzFramework::CameraState& cameraState) override;
 
     // AzToolsFramework::EditorEntityContextNotificationBus (handler moved to cpp to resolve link issues in unity builds)
     virtual void OnStartPlayInEditor();