Refactor project

Crealned up some TODOs, FIXMEs etc. Added better error handling. Looks
better, feels better.

graphics/src/window.c

@@ -13,16 +13,9 @@
 
 #include "locale_window.h"
 #include "utilities/logger.h"
+#include "utilities/rse_errors_common.h"
 #include "vulkan_base.h"
 
-/* Error codes */
-typedef enum {
-    WINDOW_ERROR_NO_ERROR = 0U,
-    WINDOW_ERROR_GLFW_INIT_FAILED,
-    WINDOW_ERROR_VULKAN_NOT_LOADED,
-    WINDOW_ERROR_WINDOW_NOT_CREATED
-} WINDOW_ERROR;
-
 GLFWwindow *g_window_handle = NULL;
 
 /**
@@ -58,7 +51,7 @@ static void key_callback(GLFWwindow* window, int key, int scancode, int action,
 }
 
 
-uint16_t window_init()
+rse_err_t window_init()
 {
     /* Initiliaze GLFW AP */
     if (GLFW_TRUE != glfwInit())
@@ -89,17 +82,17 @@ uint16_t window_init()
 
     glfwSetKeyCallback(g_window_handle, key_callback);
 
-    return WINDOW_ERROR_NO_ERROR;
+    return RSE_ERROR_NO_ERROR;
 }
 
-uint16_t window_loop()
+rse_err_t window_loop()
 {
     while (!glfwWindowShouldClose(g_window_handle)) {
         glfwPollEvents();
         draw_frame();
     }
 
-    return WINDOW_ERROR_NO_ERROR;
+    return RSE_ERROR_NO_ERROR;
 }
 
 void window_terminate()