Viser

- Minor bug fixes, performance improvements.

**Full Changelog**: https://github.com/brentyi/viser/compare/v0.0.8...v0.0.9

What's Changed
* Added null to typescript interface gen by kerrj in https://github.com/brentyi/viser/pull/9
* `wxyz`, `position`, and `visible` parameters added to all functions for creating scene nodes
* `disabled` and `visible` parameters added to all functions for creating GUI inputs
* Fixed memory leaks in point clouds and meshes
* Fixed background image downloads
* Added 2D label messages
* Fixed camera synchronization when up directions are mismatched
* More consistent camera callback API
* Add toggleable three.js statistics

New Contributors
* kerrj made their first contribution in https://github.com/brentyi/viser/pull/9

**Full Changelog**: https://github.com/brentyi/viser/compare/v0.0.7...v0.0.8

- Camera interface improvements: expose up-direction, look-at point, etc.
- Add `viser.transforms` + associated cleanup.

Many bug fixes and improvements:
- Add camera controls: orientation, position, FOV.
- (breaking change) `on_update` => `on_click` for button inputs.
- (breaking change) Replaced getter/setter APIs with `property`-based APIs.
- Add `.atomic()` message grouping.
- Fixed scene resets for empty scenes.
- Fixed `set_options()` when the currently selected value is removed.
- Fix background image flickering in Safari.

**Full Changelog**: https://github.com/brentyi/viser/compare/v0.0.5...v0.0.6

Re-built client