* 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
---------
* Generate the MVP node catalog in the manual (with some placeholders)
* Implement nearly the rest of everything
* Move to the tools directory and make it generate nicer default values
* Add category descriptions
* Organize file structure and improve type naming
* Improve book table of contents code
* Add collapsing chapter navigation to the book template
* Add to build workflow
* Clean up site structure