Migrate memo nodes to node macro and make implementing other persistent nodes easier (#3552)

* Add #[data] and #[serialize] attributes to node macro

- Add #[data] attribute for struct fields that aren't node parameters
  - Data fields are initialized with Default::default()
  - Passed as references to the underlying function
  - Excluded from registry metadata (internal state)
  - Generic types in data fields allowed without #[implementations]

- Add #[serialize] attribute for custom Node::serialize() implementation
  - Receives references to all data fields
  - Generates serialize() method in Node trait impl

- Conditional derives based on data field presence
  - With data fields: Debug, Clone only
  - Without data fields: Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash

* Refactor Memo and Monitor Node to use node macro

* Move Complex type into type alias

* Fix format

* Update node-graph/nodes/gcore/src/memo.rs

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

* Update node-graph/nodes/gcore/src/memo.rs

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

---------

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

node-graph/node-macro/src/shader_nodes/per_pixel_adjust.rs

@@ -245,6 +245,7 @@ impl PerPixelAdjustCodegen<'_> {
 			number_display_decimal_places: None,
 			number_step: None,
 			unit: None,
+			is_data_field: false,
 		});
 
 		// find exactly one gpu_image field, runtime doesn't support more than 1 atm