Create module for managing AWS IPAM

[avnes]

• Add modules and sub modules for managing IPAM
• Make the IPAM modules usable
• Refactor IPAM pool variable

Describe your changes

• Create main module for using AWS IPAM and related features
• Sub module for creating IPAM
• Sub module for managing IPAM scopes
• Sub module for managing IPAM pools

Issue ticket number and link

https://github.com/dfds/cloudplatform/issues/2992

Checklist before requesting a review

• I have tested changes in my sandbox
• I have added the needed changes in the test/integration folder to apply my changes in QA. Read the guide on adding environment variables in QA
• I have rebased the code to master (or merged in the latest from master)

Is it a new release?

• Apply a release tag release:(major|minor|patch), following semantic versioning in this guide or norelease if there is no changes to the Terraform code

Proof that it is working: