Update to allow mixed types in object

[krowlandson]

Overview/Summary

This PR updates the object type for the template_file_variables input variable to allow specifying a map of objects containing different object types.

This change is necessary due to the way may(any) expects the object to be a map with values of the same type.

This PR fixes/adds/changes/removes

1. Fixes Feature Request: Support full templating functionality of templatefile() in module #253, adding support for mixed object types in the template_file_variables input variable to enable full use of the template() function in Terraform
2. Updates Wiki documentation to reflect this change

Breaking Changes

None

Testing Evidence

This change is as per the narrative in #253 and all automated tests will be used as evidence that this

As part of this Pull Request I have

• Checked for duplicate Pull Requests
• Associated it with relevant issues, for tracking and closure.
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated relevant and associated documentation.
• Updated the "What's New?" wiki page (located in the Enterprise-Scale repo in the directory: /docs/wiki/whats-new.md)

[krowlandson]

/azp run unit

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jtracey93]

LGTM. Let's make sure tests complete.

[matt-FFFFFF]

Will look tomorrow but speedy work @krowlandson !