* major JSDoc write up
* removed ESLint `no-bitwise` exception, it only applies to specific functions and not the entire code
* the `SVGCubicMorph` component will remove un-necessary `Z` path commands when is the case for better out of the box animation
* fixed a minor disambiguation with `filterEffects` and `drop-shadow` property and its `dropshadow` interpolation function
* TypeScript strong: all files are modules, easy to implement in any third party app
* updated `CubicBezier` and SVGPathCommander
* code cleanup
* updated SVGPathCommander to support a wider range of shapes, including closed/unclosed shapes
* added d3-polygon dependency for ***svgMorph*** component
* updated both ***svgMorph*** and ***svgCubicMorph*** components
* updated polyfill
* code cleanup
* documentation updates
