Add check for SpatiaLite support in GeoPackage passed to `ngr_dbqs_filter_predicate()` to prevent SQL errors

[NewGraphEnvironment]

will multiple rows for each target table queried if run on

Regular GPKGs (like those created by sf or ogr2ogr) support geometry, but not SpatiaLite SQL functions unless explicitly extended.

fail early with a helpful message like ("SpatiaLite not enabled. Try loading extension or using st_join()")

relates to NewGraphEnvironment/dff-2022#174