[DMG-365] Improve main application manifest
[DMG-365] Improve main application manifest

- Add qubell credentions properties
- Fixed jenkins setup - jenkins_qubell, jenkins_nexus and jenkins_gerrit now in a one step jenkins_setup
- Fixed step dependencies

griddynamics/asf-platform,griddynamics/asf-platform,griddynamics/asf-platform,griddynamics/asf-platform