autoflex: wire up option functions, add IgnoreFieldNames option

[jar-b]

Description

This change implements AutoFlex options, allowing custom options to be passed to flex.Expand or flex.Flatten. The changes include:

• Adding a new AutoFlexOptions struct, which stores all configurable options
• Embedding the AutoFlexOptions struct into the autoExpand and autoFlatten flexer structs
• Adjusting the AutoFlexOptionsFunc signature to accept a pointer to AutoFlexOptions

As a first use case, the IgnoreFieldNames option was added. This option is a slice of strings, with a default value of []string{"Tags"}. This replaces the previously hardcoded logic which skipped processing of any fields named Tags, and instead makes this configurable. Test cases have been added to exercise the behavior with default options and overrides to remove defaults and add custom values.

Relations

Relates #36332
Depends on hashicorp/terraform-plugin-framework#961
Depends on #36992

References

• AWS SDK for Go V2 retry options, the pattern on which these options are based: https://github.com/aws/aws-sdk-go-v2/blob/main/aws/retry/standard.go

Output from Acceptance Testing

% go test ./internal/framework/flex/...
ok      github.com/hashicorp/terraform-provider-aws/internal/framework/flex     0.488s

[github-actions]

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[github-actions]

Thank you for your contribution! 🚀

A new usage of AWS SDK for Go V1 was detected. Please prefer AWS SDK for Go V2 for all net-new services. If this is an enhancement or bug fix to an existing AWS SDK Go V1 based resource, this comment can be safely ignored.

For additional information refer to the AWS SDK for Go Versions page in the contributor guide.

[ewbankkit]

LGTM 🚀.

% go test ./internal/framework/flex 
ok  	github.com/hashicorp/terraform-provider-aws/internal/framework/flex	0.817s

[github-actions]

This functionality has been released in v5.48.0 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]

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