- Created `bdd_hooks` that contain the sing up steps just only once in the feature start and the needed start steps depending on the test case.
- Updated feature files removing sign up steps and given/when/then reorganization.
Closes#8026
- Reviewed `suite_messaging/tst_ChatFlow` feature: Cleanup of duplicated steps and separation of action / validation applied.
- Reviewed `suite_messaging/tst_groupChat` feature.
- Added new tag to `Jenkins` file: `relyon-mailserver`.
- Added new `StartupSteps` class to manage init / startup static methods outside bdd steps. It can be used as a util in `hooks` and `steps`.
Closes#7931
Noelia
Jonathan Rainville