Implement enterprise search rankers in the database (#49861)

...rprise/backend/src/metabase_enterprise/search/scoring.clj

.../backend/test/metabase_enterprise/search/scoring_test.clj

src/metabase/models/action.clj

src/metabase/models/card.clj

src/metabase/models/collection.clj

src/metabase/models/dashboard.clj

src/metabase/models/database.clj

src/metabase/models/model_index.clj

src/metabase/models/segment.clj

src/metabase/models/table.clj

src/metabase/search/postgres/index.clj

src/metabase/search/postgres/scoring.clj

src/metabase/search/spec.clj