Make the built-in advanced search work correctly out-of-the-box for a…

[seanaery]

…ny supported version of Solr without requiring workarounds. Fixes #3738.

• Use existing search_field config to dynamically set the clause_params required for use by Solr JSON Query DSL.
• Automatically display all values (limit: -1) for any facets rendered in Advanced Search, so "more" modals aren't used. Advances Default behavior of Advanced Search facet modal does not reflect expected multi-select behavior #3236.
• Add optional config.advanced_search.form_solr_parameters to enable fine-tuning each advanced search facet config as needed.
• Document advanced search configuration options, e.g., include_in_advanced_search. Closes Advanced search link should appear by default #3681.
• Remove the duplicative /advanced Solr requestHandler workaround added in Use a separate requestHandler for JSON DSL queries #3066; return to using the existing /select config for advanced; but still retain option to configure a separate handler if desired.
• Instead, we just set the top-level defType to lucene automatically whenever clause_params are used (JSON Query DSL); this fixes searching in Solr 7.2-9.3.
• Enable Advanced Search by default and render the link to it.
• Change the More options button (that leads to the form) into an Advanced search link. Closes Advanced search link should appear by default #3681.

[seanaery]

Tagging a couple developers as a heads-up, as this builds on / incorporates ideas from your documented workarounds:

• @sandbergja - This makes the clause_params workaround you helpfully documented in the wiki just happen automatically; it also makes things work consistently across Solr 7, 8, 9 without an implementer having to do anything special for different versions.
• @body-clock - This incorporates the approach you documented in the wiki for getting a default -1 facet limit for each facet when in the advanced search page; it'd now just get configured like that automatically using the existing facet_fields but can be fine-tuned with additional config if needed.

[mamrey]

This is great @seanaery! The advanced search now works as expected, without any configuration, in the development app. This makes it so much easier to work on the advanced search feature and use it in an app. Thanks for the additional tests and documentation that clearly express the new behavior. I left a question and a non-blocking suggestion for an additional test, but I've gone ahead and approved.