Make certain Bezier function parameters optional and other refactors (#713)

* Make certain parameters optional

* Use builder pattern for project function's optional parameters

* Address comments posted in bezier-math-lib discord channel

* Minor changes to text

* Address PR comments

* Fix index.html

* Nit

* Replace builder pattern with simple struct

* Move constants to a separate file

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

bezier-rs/docs/interactive-docs/package.json

@@ -3,6 +3,7 @@
 	"version": "0.1.0",
 	"private": true,
 	"scripts": {
+		"start": "vue-cli-service serve",
 		"serve": "vue-cli-service serve",
 		"build": "vue-cli-service build",
 		"lint": "vue-cli-service lint"