Add Camera Frame script and integrate SSAO settings

[marklundin]

Adds the CameraFrame.mjs script to the scripts dir and instantiates in the physics cluster demo.

[willeastcott]

Cool! But I'm a little confused why this now works for you since this PR is basically what I tried before... 🤔 Anyway, thanks! 🙌

[marklundin]

Not sure, but I noticed that you have to specifiy the other sub attributes, otherwise it will just get overwritten

ssao: {
   "type": "combine",
 }