Bug 1812353 - Update GPUSupportedLimits in webgpu.webidl. r=webgpu-reviewers,webidl,saschanaz,jimb,emilio,smaug

* Add validation for requested features and devices for
adapter.requestDevice().
* Promote webgl's AutoAssertCast to mfbt/Casting.h/LazyAssertedCast.

Differential Revision: https://phabricator.services.mozilla.com/D177110