Highlight search results in new datatables format

[Seb35]

This improves the recent work on the datatables format, it highlights the search results by using the library mark.js and its datatables plugin, both under MIT license.

See this blog post in datatables.net for an overview of this library mark.js and its integration.

[thomas-topway-it]

it would be good to manage it through a parameter, for instance

		$params['datatables-mark'] = [
			'type' => 'boolean',
			'message' => 'srf-paramdesc-datatables-library-option',
			'default' => false,
		];

and

		$params['datatables-mark.diacritics'] = [
			'type' => 'boolean',
			'message' => 'srf-paramdesc-datatables-library-option',
			'default' => false,
		];

etc. for the most relevant options available here https://markjs.io/#mark
so we keep the current design

[thomas-topway-it]

hello @Seb35 can you resync the fork so we can merge it ?
thank you

[jaideraf]

Since #801 was merged, this PR should be closed.