[VPC] new data-source/opentelekomcloud_vpc_route_table_v1

[anton-sidelnikov]

Summary of the Pull Request

PR Checklist

• Refers to: Adding route to existing route table using terraform provider #2562
• Tests added/passed.
• Documentation updated.
• Schema updated.
• Release notes added.

Acceptance Steps Performed

=== RUN   TestAccVpcRouteTableDataSource_basic
=== PAUSE TestAccVpcRouteTableDataSource_basic
=== CONT  TestAccVpcRouteTableDataSource_basic
--- PASS: TestAccVpcRouteTableDataSource_basic (99.39s)
PASS

Process finished with the exit code 0

[artem-lifshits]

=== RUN TestAccVpcRouteTableDataSource_basic
=== PAUSE TestAccVpcRouteTableDataSource_basic
=== CONT TestAccVpcRouteTableDataSource_basic
--- PASS: TestAccVpcRouteTableDataSource_basic (94.27s)
PASS

Process finished with the exit code 0

[otc-zuul]

Build succeeded.
https://zuul.otc-service.com/t/eco/buildset/ea1d89b5d60c4a6caae75cd456d8bd09

✔️ build-otc-releasenotes SUCCESS in 3m 59s
✔️ noop SUCCESS in 0s
✔️ otc-golangci-lint SUCCESS in 3m 00s
✔️ golang-make-test SUCCESS in 7m 03s
✔️ golang-make-vet SUCCESS in 2m 26s
✔️ tflint SUCCESS in 1m 44s
✔️ goreleaser-build SUCCESS in 7m 22s