Add support to create self provisioned storage Azure blob for Data protection and Azure AKS credential

[ramya-bangera]

1. What this PR does / why we need it: Add support to create self provisioned storage Azure blob for Data protection and Azure AKS credential

2. Which issue(s) this PR fixes

   (optional, in `fixes #<issue number>` format, will close the issue(s) when PR gets merged):
   
   Fixes #

3. Additional information Acceptance test log snippet

   bangerar@bangerarYMD6M credential % go test ./... -v -tags credential    
   === RUN   TestAcceptanceForClusterGroupDataSource
   data_source_credential_test.go:43: credential data source acceptance test complete!
   --- PASS: TestAcceptanceForClusterGroupDataSource (15.13s)
   === RUN   TestAcceptanceForCredentialResource
   resource_credential_test.go:67: credential resource acceptance test complete!
   --- PASS: TestAcceptanceForCredentialResource (35.61s)
   PASS
   ok      github.com/vmware/terraform-provider-tanzu-mission-control/internal/resources/credential        51.313s

Screenshot of credential created via TMC TF

4. Special notes for your reviewer

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (b1bda65) 25.72% compared to head (726753d) 25.72%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #331 +/- ## ======================================= Coverage 25.72% 25.72% ======================================= Files 187 187 Lines 15779 15779 ======================================= Hits 4059 4059 Misses 11515 11515 Partials 205 205 ```

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[ankitsny]

LGTM