[8.0] Fix datatables() helper

[ElfSundae]

As discussed in #1462 (comment)

• Use container binding to resolve DataTables factory
• Support variable length parameters

[ElfSundae]

Updated: don't support variable length parameters.

Variable length parameters for DataTable is a bad idea, and this will make our factory much complex to not work. Think about FooDataTable($query, $array), how to do autoselect for this engine, by type of $query or by type of $array or both of them?

Maybe someone wants to implement a complex DataTable, then just use new FooDataTable(...) or DataTables::foo(...) or datatables()->foo(...).