Refactoring

Cleaned up a project, removed uneccessary includes.
Fixed few errors, nothing major.

graphics/src/rse_graphics.c

@@ -34,7 +34,7 @@ rse_err_t rse_graphics_init(void)
 void rse_graphics_test_function(void)
 {
     rse_err_t status = RSE_ERROR_NO_ERROR;
-    uint8_t tex_id_2 = 0;
+    uint16_t tex_id_2 = 0;
 
     status = rse_load_texture("../../test_image.png", &tex_id_2);
     if (status != RSE_ERROR_NO_ERROR) {