Validation for VPC Name

[modular-magician]

Tracked submodules are build/terraform-beta build/terraform-mapper build/terraform build/ansible build/inspec.

This change addresses the need of adding a way to precheck if the given VPC name as per the allowed naming conventions or not.

part of hashicorp/terraform-provider-google#9113

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Release Note Template for Downstream PRs (will be copied)

compute: added validation for name field on `google_compute_network`

Derived from GoogleCloudPlatform/magic-modules#6348