New Component: Conic Gradient

[endigo9740]

Note this component already exists here:
https://github.com/Brain-Bones/skeleton/blob/dev/src/lib/ConicGradient/ConicGradient.svelte

It's currently incomplete as I was struggling to find a proper means to pass in the color values. The radial gradient doesn't like CSS variables, and Tailwind doesn't currently have a utility class for this (to my knowledge).

It may be possible a third party Tailwind library exists for this, so some research should be done to determine the best means to handle this.

If we cannot find an adaquate solution it may be best to sunset this one. We'll then purge it from the library.

[endigo9740]

Official docs:
https://tailwindcss.com/docs/configuration#referencing-in-java-script

But this seems to inflate the bundle size if used, per their own instructions. Vite would not import the Tailwind config as is, but we could do this:
https://lobotuerto.com/notes/import-tailwind-config-in-vite

However, given the issues this cause I don't advise we go this route. Instead, we may just limit to using only Tailwind's default colors, like so:
https://stackoverflow.com/questions/61118060/how-to-access-tailwind-colors-from-javascript

[endigo9740]

I've pushed a PR that updates this component to support three methods of adding color stops:

1. Provide rgb(vars(--color-primary-500)) for theme colors
2. Provide colors: ['purple',500] for default Tailwind colors
3. Provide any standard CSS color as a string, including named colors, hex, HSL, etc.

I also updated the documentation and test cases to be current and re-enabled the component in the sidebar navigation.

[endigo9740]

Per @ryceg recommend let's add a Typescript interface definition for the data information. Location/name TBD, but something like:

.../ConicGradients/types.ts

[endigo9740]

The types have been added and included in the index.ts package export.