[Feature]: Merge monoctl repo into m8 repo

[christianhuening]

The split repo situation makes development and testing harder than it should be. Even versioning is harder this way. To align versions of server and client matching each other and making development easier I would merge both repos.

AC:

• monoctl code merged into m8 repo
• CI/CD properly configured
• Adjusted where necessary because of module changes
• monoctl repo archived and put a note to the readme about the change