Updates to tfsdk2fw

[gdavison]

Description

Makes the following updates to tfsdk2fw:

• Uses the stringdefault package for string defaults
• Adds support for defaults for other primitive types
• Sets Computed for attributes with default values
• No longer adds the non-existent SetMigratedFromPluginSDK to resource initialization

[github-actions]

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[ewbankkit]

LGTM 🚀.

[github-actions]

This functionality has been released in v5.60.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.