Add StoredSequence to run tests from an initial stored sequence

See merge request !1385
Status Job ID Name Coverage
  External
failed ERP5.UnitTest-Master

01:31:52

passed SlapOS.Eggs.UnitTest-Master.Python2

00:07:24

passed SlapOS.Eggs.UnitTest-Master.Python3

00:09:33

failed ERP5.UnitTest-Master

failed ERP5.UnitTest-Master

01:36:05

passed SlapOS.Eggs.UnitTest-Master.Python3

passed SlapOS.Eggs.UnitTest-Master.Python3

00:07:55