Added clean_up.sh, changes to destroy.sh and shared_aws.sh

[kaustubhmali02]

Link related issues:

• Resolves # 181 add cleanup.sh script to: destroy and remove all files created by terraform
• Progress towards # 52 Improve Scripts

Changes/added features:

• Added clean_up.sh which will clean all the files which are created by terraform
• Runs in conjunction with destroy.sh

The following short checklist should be used to make sure your PR is of good quality, and can be merged easily:

• [✓] follows project conventions
• [✓] follows project principles
• [✓] ./run.sh works correctly for all new examples
• [✓] CI checks pass
• [✓] mergeable to main (no conflicts)
• [✓] resolved issues linked
• Milestone linked (if applicable)

Reviewers:
@ianmiell
@ttarczynski
@sanyer
@teszes
@choilmto
@rodrigorras