[mesheryctl] New command exp environment

[RipulHandoo]

See mesheryctl Command Tracker for current status of commands.

Desired Behavior

Develop an experimental command to manage environments within the system. Refer to the Environment documentation for more details about environments.

Tasks to be Completed:

• Implement command to list existing environments
• Implement command to create new environments
• Implement command to delete existing environments
• Implement command to view details of a specific environment
• Develop comprehensive test cases to validate the functionality of the environment command

---

Contributor Resources

• ⌨️ mesheryctl Contributing Guide
• Beginner's guide to contributing to Meshery and mesheryctl
• mesheryctl Command Tracker
• Meshery CLI Commands and Documentation
• 🙋🏾🙋🏼 Questions: Layer5 Discussion Forum and Layer5 Community Slack

[github-actions]

This issue has been labeled with 'component/mesheryctl'. Note that after making changes you need to update it in the mesheryctl command tracker spreadsheet.

---

        Be sure to join the community, if you haven't yet and please leave a ⭐ star on the project 😄

[luigimorel]

@RipulHandoo can this be assigned to me?

[RipulHandoo]

@luigimorel Certainly, it's great to see your interest in contributing! At the moment, I've already started working on this particular feature. However, I appreciate your willingness to help. There are some other issues similar to this. I'll mention them below:
#10585
#10582