[docs] Add WIP pages for the charts

[alexfauquette]

[mui-bot]

	Messages
:book:	Netlify deploy preview: https://deploy-preview-7871--material-ui-x.netlify.app/

These are the results for the performance tests:

Test case	Unit	Min	Max	Median	Mean	σ
Filter 100k rows	ms	629.9	1,237	679.2	848.76	216.663
Sort 100k rows	ms	669.6	1,281.3	1,142.1	1,037.92	202.974
Select 100k rows	ms	267.2	344.6	308.7	306.9	33.273
Deselect 100k rows	ms	157.8	291.3	208.2	217.78	43.012

Generated by :no_entry_sign: dangerJS against 944ba50b51e9118e57ca657799d1a615363c9854

[alexfauquette]

For "Columns" I do not see the distinction with the "Bars". It's the same but rotated by 90°

For the others, ok, that could be interesting to see the traction

[flaviendelangle]

For "Columns" I do not see the distinction with the "Bars". It's the same but rotated by 90°

Most library seem to indeed call both "Bar", let's forget about "Column" then

[alexfauquette]

Also added Radar since it seems very common between libraries

[joserodolfofreitas]

If the goal is to get people to see the issues for upvoting, I believe we should consider having them on a single page. I don't think it'll be a good experience to navigate page by page to find the issues for upvoting.