Add GRS attributes to pi volume group data sources and related

[Alexander-Kita]

Community Note

• Please vote on this pull request by adding a 👍 reaction to the original pull request comment to help the community and maintainers prioritize this request
• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for pull request followers and do not help prioritize the request

Relates OR Closes #0000

Output from acceptance testing:

pi_volume_group (d):

=== RUN   TestAccIBMPIVolumeGroupDataSource_basic
--- PASS: TestAccIBMPIVolumeGroupDataSource_basic (10.44s)
PASS

pi_volume_groups (d):

=== RUN   TestAccIBMPIVolumeGroupsDataSource_basic
--- PASS: TestAccIBMPIVolumeGroupsDataSource_basic (13.01s)
PASS

pi_volume_group_details (d):

=== RUN   TestAccIBMPIVolumeGroupDetailsDataSource_basic
--- PASS: TestAccIBMPIVolumeGroupDetailsDataSource_basic (8.56s)
PASS

pi_volume_groups_details (d):

=== RUN   TestAccIBMPIVolumeGroupsDetailsDataSource_basic
--- PASS: TestAccIBMPIVolumeGroupsDetailsDataSource_basic (15.04s)
PASS

pi_volume_group (r):

=== RUN   TestAccIBMPIVolumeGroupUpdate
--- PASS: TestAccIBMPIVolumeGroupUpdate (355.05s)
PASS

Description:

• Adds attributes storage_pool, replication_sites, and auxiliary as attributes to pi_volume_group, pi_volume_groups, pi_volume_group_details, and pi_volume_groups_details data sources.

• Adds replication_sites to pi_volume_group resource

• Adds status_description_errors attribute into schema (missing previously)

[michaelkad]

Few comments

[michaelkad]

Few more comments.

[michaelkad]

Update for resource_ibm_pi_volume_group are missing

[Alexander-Kita]

@michaelkad Re-requesting review for replication sites attribute checking

[michaelkad]

lgtm

[Alexander-Kita]

Opened in main repo.