Breaking change in Drupal core lead to WSOD with DBXSchema.

Problem/Motivation

Two changes in Drupal core brought issues with DBXSchema module:

1. change related to database driver namespaces (now handled has modules) →
2. per-table prefixes are deprecated →

Proposed resolution

For the first breaking change, it has been fixed since commit #d51eb619.
For the second breaking change, a new dedicated version must be created. The ConnectionInterface interface and CrossSchemaConnectionTrait trait need to be updated to reflect changes in D10.

Remaining tasks

Do the changes and test.

User interface changes

None.

API changes

None.

Data model changes

None.