update to bevy 0.13. TODO: fix view weirdness and do a pass over most of xr_input to turn the modules into plugins

src/xr_input/mod.rs

@@ -37,7 +37,7 @@ use self::trackers::{
     adopt_open_xr_trackers, update_open_xr_controllers, OpenXRLeftEye, OpenXRRightEye,
     OpenXRTrackingRoot,
 };
-use self::xr_camera::{GlobalTransformExtract, TransformExtract, XrCamera};
+use self::xr_camera::{/* GlobalTransformExtract, TransformExtract, */ XrCamera};
 
 #[derive(Copy, Clone)]
 pub struct OpenXrInput {