Refactor and simplify scripts

Description

This MR does a number of things -

• Re-organize GitLab jobs, variables to increase reusability.
• Sync Tutor env directory during Merge Request MR.
• Refactor tools-container scripts for reusability and simplicity.
• Refactor wrapper code to keep the difference between local and CI at a minimum.
• Re-organize the General TODO and Shared TODO section in README for better progress visibility.

Supporting information

https://tasks.opencraft.com/browse/BB-4550

Testing instructions

To test GitLab CI Jobs, you can either create a repo and test the whole flow. Or Check the following Job logs (I don't have fork permission in opencraft/dev group :| and not being able to add you on my personal fork) - mr-create-job.txt and deployment-job.txt. And then check the running cluster in digitalocean.

And to test local commands, you can fork the private repo and try to run commands locally.

Deadline

ASAP - Adding new functionality should be based on this.

Other information

Reviewer

• @Agrendalath