Replicate the community index model for data visualization/charts components

[shinytoyrobots]

Following a similar pattern, we should build an index for data visualization. This should showcase all existing charting components, with maintainer info etc, but also allow submission of other charts and under different frameworks.

So should model, very similarly, to https://www.carbondesignsystem.com/community/component-index.

Should be able to submit entries in a similar way (via .yml file)

Should include thumbnail, title, description, link to website guidance for that chart, link to code (where available).

Filter categories should be the same (even if actual filter items might be different - e.g. different maintainer list).

_NB: If end point is possible integration of this index and the component index, in a single "catalog" of resources, then database scheme should be consistent/compatible.

@joshblack, @andreancardona - anything in terms of pitfalls that we should be aware of?
@aagonzales - could we use the same design template for this (at least for initial pass)

[shinytoyrobots]

@aledavila - let me know if you've had a chance to look into this yet? We can schedule some pairing time next week when I'm back in office.