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

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

node-graph/gcore/Cargo.toml

@@ -29,6 +29,7 @@ serde = [
 	"glam/serde",
 	"bezier-rs/serde",
 	"bezier-rs/serde",
+	"half/serde",
 	"base64",
 ]
 
@@ -44,6 +45,9 @@ glam = { workspace = true, default-features = false, features = [
 	"scalar-math",
 ] }
 
+# Required dependencies
+half = { version = "2.4.1", default-features = false, features = ["bytemuck"] }
+
 # Optional workspace dependencies
 dyn-any = { workspace = true, optional = true }
 spirv-std = { workspace = true, optional = true }