[#96] Add author descriptions to camera module

modules/camera/include/vkcv/camera/Camera.hpp

 #pragma once
+/**
+ * @authors Vanessa Karolek, Josch Morgenstern, Sebastian Gaida, Katharina Krämer, Tobias Frisch, Alexander Gauggel
+ * @file include/vkcv/camera/Camera.hpp
+ * @brief Camera class of the camera module for the vkcv framework.
+ */
 
 #include <glm/glm.hpp>
 #include <glm/gtc/matrix_transform.hpp>

modules/camera/include/vkcv/camera/CameraController.hpp

 #pragma once
+/**
+ * @authors Vanessa Karolek, Josch Morgenstern, Tobias Frisch
+ * @file include/vkcv/camera/CameraController.hpp
+ * @brief CameraController class of the camera module for the vkcv framework. A camera object is controlled by a camera
+ * controller object. Using inheritance of this base class a camera controller object defines a specific control
+ * behaviour of the camera object in the scene.
+ */
 
 #include "Camera.hpp"
 #include "vkcv/Window.hpp"

modules/camera/include/vkcv/camera/CameraManager.hpp

 #pragma once
+/**
+ * @authors Vanessa Karolek, Josch Morgenstern, Sebastian Gaida, Katharina Krämer, Tobias Frisch, Alexander Gauggel
+ * @file include/vkcv/camera/CameraManager.hpp
+ * @brief CameraManager class of the camera module for the vkcv framework. The camera manager manages several camera
+ * controller objects. Camera objects can be created and bound to a specific camera controller via this class.
+ */
 
 #include "PilotCameraController.hpp"
 #include "TrackballCameraController.hpp"

modules/camera/include/vkcv/camera/PilotCameraController.hpp

 #pragma once
+/**
+ * @authors Vanessa Karolek, Josch Morgenstern, Tobias Frisch
+ * @file include/vkcv/camera/PilotCameraController.hpp
+ * @brief PilotCameraController class of the camera module for the vkcv framework. This class inherits from the base
+ * class @#CameraController and enables camera objects to be moved freely within the scene.
+ */
 
 #include <vkcv/camera/CameraController.hpp>
 

modules/camera/include/vkcv/camera/TrackballCameraController.hpp

 #pragma once
+/**
+ * @authors Vanessa Karolek, Josch Morgenstern, Sebastian Gaida,Tobias Frisch
+ * @file include/vkcv/camera/TrackballCameraController.hpp
+ * @brief TrackballCameraController class of the camera module for the vkcv framework. This class inherits from the base
+ * class @#CameraController and enables camera objects to be orbited around a specific center point.
+ */
 
 #include "CameraController.hpp"