[FGS]: function graph resource

[artem-lifshits]

Summary of the Pull Request

Implementation of opentelekomcloud_fgs_function_v2 base resource.

PR Checklist

• Refers to: #xxx
• Tests added/passed.
• Documentation updated.
• Schema updated.
• Release notes added.

Acceptance Steps Performed

=== RUN   TestAccFgsV2Function_basic
=== PAUSE TestAccFgsV2Function_basic
=== CONT  TestAccFgsV2Function_basic
--- PASS: TestAccFgsV2Function_basic (81.45s)
PASS

Process finished with the exit code 0


=== RUN   TestAccFgsV2Function_text
=== PAUSE TestAccFgsV2Function_text
=== CONT  TestAccFgsV2Function_text
--- PASS: TestAccFgsV2Function_text (29.65s)
PASS

Process finished with the exit code 0

=== RUN   TestAccFgsV2Function_logConfig
=== PAUSE TestAccFgsV2Function_logConfig
=== CONT  TestAccFgsV2Function_logConfig
--- PASS: TestAccFgsV2Function_logConfig (46.93s)
PASS

Process finished with the exit code 0

=== RUN   TestAccFgsV2Function_strategy
=== PAUSE TestAccFgsV2Function_strategy
=== CONT  TestAccFgsV2Function_strategy
--- PASS: TestAccFgsV2Function_strategy (85.98s)
PASS

Process finished with the exit code 0

=== RUN   TestAccFgsV2Function_versions
=== PAUSE TestAccFgsV2Function_versions
=== CONT  TestAccFgsV2Function_versions
--- PASS: TestAccFgsV2Function_versions (67.60s)
PASS

Process finished with the exit code 0

=== RUN   TestAccFgsV2Function_reservedInstance_version
=== PAUSE TestAccFgsV2Function_reservedInstance_version
=== CONT  TestAccFgsV2Function_reservedInstance_version
--- PASS: TestAccFgsV2Function_reservedInstance_version (49.36s)
PASS

Process finished with the exit code 0

=== RUN   TestAccFgsV2Function_concurrencyNum
=== PAUSE TestAccFgsV2Function_concurrencyNum
=== CONT  TestAccFgsV2Function_concurrencyNum
--- PASS: TestAccFgsV2Function_concurrencyNum (47.30s)
PASS

Process finished with the exit code 0

[otc-zuul]

Build succeeded.
https://zuul.otc-service.com/t/eco/buildset/09e8869d127a49d3bf4f8a1ae61530b0

✔️ build-otc-releasenotes SUCCESS in 4m 29s
✔️ noop SUCCESS in 0s
✔️ otc-golangci-lint SUCCESS in 3m 18s
✔️ golang-make-test SUCCESS in 4m 36s
✔️ golang-make-vet SUCCESS in 3m 44s
✔️ tflint SUCCESS in 2m 02s
✔️ goreleaser-build SUCCESS in 7m 14s
✔️ otc-terraform-visualize-main SUCCESS in 6m 29s