"isolov submitted dal with tag master for tdaq-11-02-01"

=== dal ===

implement dal.Algorithms.is_schema_changed(ex) method to verify if config exception is caused by schema change as discussed in ADTCC-339 (Igor Soloviev)

=== Igui ===

Better message if DB reload fails because of a schema change (ADTCC-339) (avolio)