Implement dynamic table attributes to generalize the graphic-specific Table type (#4050)

* Feature-gate serde derives behind cfg_attr in all runtime node graph type crates

* Refactor Table to move its hard-coded fields into an attributes field

* Encapsulate TableRow/TableRowRef/TableRowMut attribute fields behind accessor methods

* Remove TaggedValue::GraphicUnused

* Refactor Table<T> to use dynamic attributes instead fixed names

* Fix code review soundness concerns

* Add todo work

* Replace row-oriented Table<T> API with column-oriented access

* Fix attribute propagation bugs

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node-graph/graph-craft/src/document/value.rs

@@ -187,7 +187,6 @@ tagged_value! {
 	// ===========
 	// TABLE TYPES
 	// ===========
-	GraphicUnused(Graphic), // TODO: This is unused but removing it causes `cargo test` to infinitely recurse its type solving; figure out why and then remove this
 	#[serde(deserialize_with = "graphic_types::migrations::migrate_vector")] // TODO: Eventually remove this migration document upgrade code
 	#[serde(alias = "VectorData")]
 	Vector(Table<Vector>),