Add OpenTofu module examples for blog posts

[brikis98]

Description

These are examples that are used in a blog post to announce Boilerplate. I figured it made sense to add the official versions of these examples to this repo, where we could also have automated tests for them.

TODOs

Read the Gruntwork contribution guidelines.

• Update the docs.
• Run the relevant tests successfully, including pre-commit checks.
• Ensure any 3rd party code adheres with our license policy or delete this line if its not applicable.
• Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Added / Removed / Updated [X].

Migration Guide

[brikis98]

OK, tests are passing, so this is ready for review.

[brikis98]

@denis256 Could I get a review on this PR? It also includes a file with { in the name, so it may need to be merged into your #164 PR.

[denis256]

Taking a look

[brikis98]

Actually, hold up on reviewing for one minute! I need to rename a few things.

[denis256]

Having a file with {{ in git will break the git clone in Windows...

So far I thought about generation of files at runtime in "unix" tests:

• have generic file name like "module_test.go.template"
• in "unix" test copy the test directory to temp dir
• rename file to "{{..."
• run tests

I can handle this in my windows CICD branch

[brikis98]

Yes, I saw that. Windows is always such a PITA :-D

The one catch with code-generating this example is that I'm linking to the example from the new blog post... So if it's code-generated, that doesn't quite work... Is there any other alternative? Does it work with Cygwin or something?

[brikis98]

Thanks for the review. Merging now so I can get the blog post published.