feat: documentation

src/00-welcome-and-example/Example.ts

src/00-welcome-and-example/demo.ts

src/01-bezierCurves/CubicBezierCurve.ts

src/01-bezierCurves/Curve.ts

src/01-bezierCurves/CurveHelper.ts

src/01-bezierCurves/DemoBezier.ts

src/02-quaternion/DemoQuaternion.ts

src/02-quaternion/Quaternion.ts

src/02-quaternion/Rotator.ts

src/02-quaternion/RotatorHelper.ts

src/Main.ts

src/core/Lines.ts

src/core/Loader.ts

src/core/Pipeline.ts

src/core/Points.ts

src/core/Shapes.ts

src/core/TriangleMesh.ts