[OpenMFP] Account Relation

[grolu]

What would you like to be added:
Projects created in Gardener Dashboard need to be assigned to an ORA account.
Therefore the Gardener Dashboard needs to set a label that identifies an account when creating a project

Tasks

• Label Projects on Create
• Implement Kubernetes controller that ensures only allowed accounts (users need to have permission) can be linked. This controller also needs to report the project name back to OpenMFP. It also needs to ensure that all projects have an account label if the Gardener landscape is externally managed -> gardener-openmfp-bridge