[Feature Request] Update/ add to data logged to ITelemetryClient

[neha-bhargava]

As discussed with E&D team following changed to be made to the telemetry client logging:

• Api id to identify the type of request for example OBO/ Client credential

• Type of confidential client for example if it is SNI based auth/ Certificate/ Assertion/ Managed Identity.

• Log data for each resource in the scopes list.

• Error codes: STS error code or MsalException error code (for client errors) or Exception type in the ErrorCode field.

• Log token type as an enum instead of pop token.

• Log the endpoint

• Log the type of cache used. L1/ L2. This data can be stored in the TokenSource field. To make this change we need to expose a variable in TokenCacheNotificationArgs and pass this data back from Microsoft.Identity.Web.

• In case of L2 cache failure (not cache miss, but for example timeout etc.), we want this logged as well. Perhaps a special TokenSource? (consider tracking separately)

The details are listed in this document.

[bgavrilMS]

2 small updates / clarifications:

• we'd like to log separately - resource and scope (please only do string parsing if telemetry client is used)
• for errors, we'd like to log separately the error string and the error code