ENH: add render_links for Styler.to_html formatting
This came about as a requirement for converting DataFrame.to_html into Styler.to_html, citing @jorisvandenbossche in favour of the functionality.

Note that the `DataFrame.to_html` `render_links` argument is rather limited to just detecting only a URL in a cell.

The function added for Styler here is a more general pattern search, and it allows the result to be viewed in Jupyter Notebook directly, which the precursor does not.


![Screen Shot 2021-12-24 at 22 20 45](https://user-images.githubusercontent.com/24256554/147372493-5458f18a-4cf3-417a-86a1-7750e430b145.png)



Please note I added the LaTeX equivalent, so the signature is now consistent with the `escape` argument (in `{"html", "latex"}`.

Also note I changed the argument name to `hyperlinks` from `render_links`. Comments welcome.  thanks @attack68  i was not sure if there was an actual issue for this (aside from the discussion), if so can you link.