Attribute-based vector format refactor (#1624)

* Initial vector format structure

* Click targets

* Code review pass

* Remove subpaths from vector data

* Morph node & vector node tests

* Insignificant change

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

libraries/bezier-rs/src/subpath/mod.rs

@@ -4,6 +4,7 @@ mod manipulators;
 mod solvers;
 mod structs;
 mod transform;
+pub use core::*;
 pub use structs::*;
 
 use crate::Bezier;