Add mode and scaleDownControls for Compute Region AutoScaler

[rajatvig]

Related to #3693.
Adds support for mode and scaleDownControls for ComputeRegionAutoScaler

Release Note Template for Downstream PRs (will be copied)

compute: Added `mode` to `google_compute_region_autoscaler` `autoscaling_policy`

compute: Added `scale_down_control ` to `google_compute_region_autoscaler` `autoscaling_policy` (beta only)

[modular-magician]

Hello! I am a robot who works on Magic Modules PRs.

I have detected that you are a community contributor, so your PR will be assigned to someone with a commit-bit on this repo for initial review.

Thanks for your contribution! A human will be with you soon.

@rileykarson, please review this PR or find an appropriate assignee.

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 3 files changed, 43 insertions(+), 48 deletions(-))
Terraform Beta: Diff ( 3 files changed, 313 insertions(+), 44 deletions(-))
Ansible: Diff ( 2 files changed, 20 insertions(+))
TF Conversion: Diff ( 1 file changed, 11 insertions(+))

[modular-magician]

I have triggered VCR tests based on this PR's diffs. See the results here: "https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=122438"

[rileykarson]

Thanks @rajatvig!

[rajatvig]

@rileykarson I don't see the changes from this PR released for v3.28 of the provider. I see the changes in https://github.com/terraform-providers/terraform-provider-google master branch but not in the tagged 3.28 release

[rajatvig]

Same state for the beta provider. Seems the last release based off https://github.com/terraform-providers/terraform-provider-google/blob/v3.28.0/website/docs/r/compute_region_autoscaler.html.markdown was in April

[rileykarson]

This should get released as part of 3.29.0 next week! Sorry for the delay- we typically cut a release branch on Wednesday based on the last commit on Tuesday, then release it the following Monday. Since this was merged last Wednesday, it will be in the branch cut today.