* Complete dropped Galaxy/Exareme deployment

* New releases for components:
** MIP
** Exareme2
** Portal-backend
** Portal-frontend 
** Gateway

* Integration with new portalbackend authentication adapter.
* Refactored and simplified the test deployment.

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Co-authored-by: ThanKarab <tkarabatsis@hotmail.com>
Co-authored-by: Manuel Spuhler <manuel.spuhler@chuv.ch>