Add new error mapping for http error code 403 and 404

[Veena11]

Proposed changes

Describe what this PR is trying to do.

Type of change

• [ x] Feature work
• Bug fix
• Documentation
• Engineering change
• Test
• Logging/Telemetry

Risk

• High – Errors could cause MAJOR regression of many scenarios. (Example: new large features or high level infrastructure changes)
• [x ] Medium – Errors could cause regression of 1 or more scenarios. (Example: somewhat complex bug fixes, small new features)
• Small – No issues are expected. (Example: Very small bug fixes, string changes, or configuration settings changes)

Additional information

[azure-pipelines]

This pull request does not update CHANGELOG.md.

Please consider if this change would be noticeable to a partner or user and either update CHANGELOG.md or resolve this conversation.

[ameyapat]

Cloned PR for veena/fixHttpErrorMapping

---

AI description (iteration 1)

PR Classification

Bug fix

PR Summary

This pull request addresses the handling of HTTP 403 and 404 errors in the MSAL library.

• MSIDDefaultSilentTokenRequestTests.m: Added a test to verify that a 403 HTTP response returns the correct error.
• MSIDAADRequestErrorHandler.m: Updated error handling to create a specific underlying error for 403 and 404 HTTP status codes.
• MSALError.h: Introduced a new error code MSALInternalErrorUnExpectedHttpResponse for unexpected HTTP responses.
• MSIDError.m and MSIDError.h: Added the new error code MSIDErrorUnExpectedHttpResponse and updated error code mappings.
• MSALErrorConverter.m: Mapped the new error code to the internal error code.

[ameyapat]

Cloned PR for veena/fixHttpErrorMapping

---

AI description (iteration 1)

PR Classification

Bug fix for handling unexpected HTTP error responses.

PR Summary

This pull request addresses the handling of unexpected HTTP error responses, specifically for status codes 403 and 404.

• MSIDDefaultSilentTokenRequestTests.m: Added a test to verify that a 403 HTTP response returns the correct underlying error.
• MSIDAADRequestErrorHandler.m: Updated error handling to create an underlying error for 403 and 404 HTTP status codes.
• MSALError.h, MSIDError.h, MSIDError.m, MSALErrorConverter.m: Added new error codes for unexpected HTTP responses and updated error conversion logic.
• MSIDAADRequestErrorHandlerTests.m: Added tests to verify the correct handling of underlying errors for 403 and 404 HTTP responses.