feat(decouple): Decouple GroupEx ( Daxko ) to Drupal.org

[podarok]

Original Issue, this PR is going to fix: https://openy.atlassian.net/browse/MAINTAIN-143

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If there is a new feature or this is a bug fix - use 9.x-2.x branch. We'll tag for release if the bug is critical asap or tag for release next bug fix release until critical issue arrived.

Steps for review

• Check https://www.drupal.org/project/groupexpro
• Check openy_gxp, embedded_groupexpro_schedule, openy_group_schedules are in place with 1.0.2 version.
  

General checks

• All coding styles are fulfilled and there are no any issues reported by CodeSniffer. See Code of Conduct.
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• Steps for review have been provided according to PR changes.
  
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Thank you for your contribution!

[gundevel]

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[gundevel]

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