Add a basic API and rudimentary frontend for node graph layers (#846)

* Node graph API stub

* Rename and fix SetInputValue

* Get list of links from network

* Test populating node graph UI

* Node properties

* Fix viewport bounds

* Slightly change promise usage

* A tiny bit of cleanup I did while reading code

* Cleanup and work towards hooking up node links in Vue template

* Add the brighten colour node

* Run cargo fmt

* Add to and from hsla

* GrayscaleImage node with small perf improvement

* Fix gutter panel resizing

* Display node links from backend

* Add support for connecting node links

* Use existing message

* Fix formatting error

* Add a (currently crashing) brighten node

* Replace brighten node with proto node implementation

* Add support for connecting node links

* Update watch dirs

* Add hue shift node

* Add create_node function to editor api

* Basic insert node UI

* Fix broken names

* Add log

* Fix positioning

* Set connector index to 0

* Add properties for Heu shift / brighten

* Allow deselecting nodes

* Redesign Properties panel collapsible sections

Co-authored-by: Keavon Chambers <keavon@keavon.com>
Co-authored-by: Dennis Kobert <dennis@kobert.dev>

Cargo.lock

@@ -358,6 +358,7 @@ dependencies = [
  "dyn-clone",
  "graphene-core",
  "graphene-std",
+ "log",
  "num-traits",
  "rand_chacha",
  "serde",
@@ -460,6 +461,7 @@ dependencies = [
 name = "graphite-wasm"
 version = "0.0.0"
 dependencies = [
+ "graph-craft",
  "graphite-editor",
  "graphite-graphene",
  "js-sys",