[Table] Fix controlled behavior

[oliviertassinari]

• PR has tests / docs demo, and is linted.
• Commit and PR titles begin with [ComponentName], and are in imperative form: "[Component] Fix leaky abstraction".
• Description explains the issue / use-case resolved, and auto-closes the related issue(s) (http://tr.im/vFqem).

Closes #6006.
Closes #6295.

I some regards, this PR is introducing a breaking change by removing the ambiguity between default state and controlled state. Now, as soon as the selected property his used, the rows selection of the component are controlled. Hence fully implementing what's documented:

This property can be used to programmatically select rows.

[oliviertassinari]

I'm going ahead by merging this PR. It's a bug fix but will most likely change some people code behavior. I think that we should consider it a breaking change.