XWIKI-19682: Solr ParseException from SimpleEventQuery when comparing with equality to empty string (#1834)

* Match missing values when the value is `null` (previously, it matched the string "null").
* Add a new helper method to get a complete query string that escapes the empty strings as `""` in `SolrUtils`.
* Migrate all relevant usages of `toFilterQueryString` to `toCompleteFilterQueryString`.

Currently translated at 100.0% (3 of 3 strings)

Translation: XWiki Platform/Rating module
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/rating-module/ko/

* Also update code to use the standard Promise API.

Currently translated at 100.0% (3 of 3 strings)

Translation: XWiki Platform/Rating module
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/rating-module/ru/

* First batch.

Currently translated at 100.0% (3 of 3 strings)

Translation: XWiki Platform/Rating module
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/rating-module/de/

Currently translated at 100.0% (20 of 20 strings)

Translation: XWiki Platform/XWiki.RatingsTranslations
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-ratingstranslations/de/

  * Fix case when there's no vote
  * Ensure to cover it with test case

  * Provide a new scope property in ConfigurableClass with 4 possible
    values: WIKI, SPACE, ALL_SPACES and WIKI+ALL_SPACES. This property
replace the old boolean property configureGlobally which was standing
for WIKI (true) and SPACE (false).
  * Refactor ConfigureClassMacros to use the new property and keep
    performing request with the old property for backward compatibility
reason
  * Refactor all existing ConfigureClass in xwiki-platform to use the
    new property
  * Provide translations for ConfigurableClass properties
  * Put missing "creator" in the standard right so that it's not
    displayed in the extension rights
  * Fix integration tests for ConfigurableClass and ensure to not
    display all spaces section when viewing configurable class page.

  * Provide a new script service method to allow re-compute the average
    rating. Note that this method needs programming right since it can
be resource consuming.

  * Ensure to reset average to zero when all votes are removed

Revert "XWIKI-18723: Make ConfigurableClass support all space and wiki administration cases (#1663)"

This reverts commit be359c1e.

  * Ensure to catch the right exception in the migration to detect the
    missing solr core

  * Provide a new scope property in ConfigurableClass with 4 possible
    values: WIKI, SPACE, ALL_SPACES and WIKI+ALL_SPACES. This property
replace the old boolean property configureGlobally which was standing
for WIKI (true) and SPACE (false).
  * Refactor a bit ConfigureClassMacros to use the new property
  * Refactor all existing ConfigureClass in xwiki-platform to use the
    new property
  * Provide translations for ConfigurableClass properties
  * Provide a new module with the migration components for
    ConfigurableClass
  * Put missing "creator" in the standard right so that it's not
    displayed in the extension rights

The enum `RatingQueryField` is public, so all fields should be documented.

Related checkstyle issue https://github.com/checkstyle/checkstyle/issues/9876

The link to the failed build: https://github.com/checkstyle/checkstyle/pull/10200/checks?check_run_id=2928353421#step:6:8170