Restore functionality of GPU infrastructure (#1797)
* Update gpu nodes to compile again
Restructure `gpu-executor` and `wgpu-executor`
And libssl to nix shell
Fix graphene-cli and add half percision color format
Fix texture scaling
Remove vulkan executor
Fix compile errors
Improve execution request deduplication
* Fix warnings
* Fix graph compile issues
* Code review
* Remove test file
* Fix lint
* Wip make node futures send
* Make futures Send on non wasm targets
* Fix warnings
* Fix nested use of block_on
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Co-authored-by: Keavon Chambers <keavon@keavon.com>
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