This MR removed
flatSequencers function and makes
flatAlgorithmSequences to also cover the use case served by the former (filtering algorithms by name).
The implementation has been improved by better argument names.
Tagging @fwinkl who pointed out confusing implementation of
Since changes affect CA class requesting full set of unit tests however all uses were in CA and are changed. Tested with trigger new JO menu (required config pickles) and jobs to run.