document: advanced search config and endpoint

[Garfield-fr]

• Adds configuration for enabled/disabled advanced search.
• Adds a new field in the document schema to group
  call number for holdings and items.
• Adds a new endpoint for advanced search config.

⚠️ update ES mapping and reindex ES documents

[PascalRepond]

Could you add migration instructions? Update mappings, reindex documents?

[PascalRepond]

Tests

• REP: The new search bar position is weird. Is it possible to move it above the results number and filter buttons:
  
• REP: Field selector dropdown values should be fixed ordered (order in the US)
• MD: the expert search toggle is removed when reloading the page or the search.
• REP [not completely related]: If I click "extend to all organisations" after an expert search, it goes back to "simple=1".
• REP: It would be nicer if the expert search toggle and advanced builder button were closer to the search field
  ZUB: It's not easy to implement this display, as the expert search is part of the filters.
  
• REP: problems in the targeted fields (specs were incorrect), see detailed comments in code

[PascalRepond]

Tests (round 2)

• MD: 500 error if I use double quotes without deselecting the option 'phrase'. Once I get the error I cannot use the advanced search during 5min (local storage). The page is blocked even after a refresh.
• REP: "build advanced query button" should be always visible even if the expert toggle is disabled (cf. acceptance criteria)
• REP: When I reload the page after an adavanced search and re-open the advanced query builder, I get an error "ERROR TypeError: this.fieldMappingMap is undefined"
• REP: Order and name of the dropdowns should be: Local fields (document) -> Local fields (holdings) -> Local fields (items)