[FEATURE REQ]Enable MSAL log and MSAL PII Logs

[g2vinay]

Library or service name.
Azure.Identity

Is your feature request related to a problem? Please describe.
Azure.Identity should allow customers to configure MSAL logging levels, including PII info and platform loggings.

Enable MSAL Logging: Port the implementation from this PR
Enable PII Logs: Port the implementation from this PR

[sadasant]

Note to self: .NET adds it on TokenCredentialOptions

[sadasant]

Regarding “Enable MSAL Logging”, we already have this enabled!

All of our MSAL clients get configured with logging, as you can see here: https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/identity/identity/src/msal/utils.ts#L86-L110

This has been true for a while.

So, I’ll focus on PII 🤔

[sadasant]

After our last meeting (today Thursday Sep 2, with the architects across languages), I’m moving this to the next milestone.

[sadasant]

We’ve decided to close this for now, since currently there’s no use case for these logs on JS.