Shadertoy unofficial plugin per Patu

Shadertoy.com unofficial plugin.
Features:

* Fork any shader.
* Save as new draft (for owned shaders).
* Export shaders (single JSON or ZIP archive with JSON and readme.txt).
* Display current canvas resolution.
* Create links in comments and description.

* Backup all user's shaders (JSON file).
* Adjustable slider for full control of 'iTime' uniform and audio/video inputs.
* FOUR sliders simulating mouse position with the same range. This can be used to tweaking variables.
* Big shader preview on shaders list on "My profile" page ( + optional alternative layout ).
* Change resolution in windowed and fullscreen mode by pressing ALT and 1...9. keys.
Resolution is divided by pressed key value, for example:
* Pause/Restart in fullscreen mode. FWD/RWD with arrow keys.
* Fullscreen edit mode.

https://github.com/patuwwy/ShaderToy-Chrome-Plugin