Refactor bezier-rs' to_svg functionality (#758)

* Change Bezier to_svg to include handles and endpoints

* Move params into brackets of format macro, remove unused comment

* Use write macro instead of format

* Fix path for watched directory

* Refactor functions to remove ToSVGOptions

libraries/bezier-rs/src/lib.rs

@@ -3,7 +3,9 @@
 mod bezier;
 mod consts;
 mod subpath;
+mod svg;
 mod utils;
 
 pub use bezier::*;
 pub use subpath::*;
+pub use svg::*;