[identity 2.0] Move identity to using the shared settings.

[witemple-msft]

This is some stuff that I passively cleaned up and modernized while working on the Identity native dependency rework.

• Moves to the shared rollup config
  • Moves identity/test/assets to identity/assets (same as Form Recognizer)
• delete karma.conf.js and the unit-test:browser script as we don't support automated browser testing in Identity (IMO leaving it in the repo is confusing and creates the suggestion that automated browser testing should work)

[witemple-msft]

My branch to pull native dependencies out of mainline identity is based on this PR, so once It's merged I can rebase that working tree onto the feature branch and put it up for review.

[HarshaNalluru]

delete karma.conf.js and the unit-test:browser script as we don't support automated browser testing in Identity (IMO leaving it in the repo is confusing and creates the suggestion that automated browser testing should work)

Not just identity, all the packages that depend on identity for testing use the CSCredential. Are you suggesting skipping all of them?

[witemple-msft]

@HarshaNalluru No. I should say we do not support automated browser testing of identity. Other packages can continue to use whatever token credential implementation they like for testing, but keep in mind that it's just a hack. What we are testing isn't so much Identity in the browser as much as bearer token authz in the browser, especially since CSC doesn't even work unless we bypass websec. A real user should never use anything other than IBC in a browser, and we are reconsidering even that for v2.

[sadasant]

@willmtemple let's chat! Automated browser testing on Identity v1 and v2 is a thing. It currently works on master. Also, this PR should be made twice, one for the v2 branch (like this one) and another one for master.

[witemple-msft]

@sadasant I can change the base of this PR back to master. Making the same commit twice on two different branches will make merging 2.0.0-beta.3 later challenging, but maybe we can partially merge master back into the feature branch to straighten out the history.

[witemple-msft]

@HarshaNalluru apparently between the time I originally forked this branch off and now, some browser tests for Identity were enabled. So my mistake, but yes we do have some browser tests of Identity now 😄 .

[sadasant]

@willmtemple I'll make sure to keep you up to date! Identity has been moving faster lately 😁

[witemple-msft]

/check-enforcer evaluate

[sadasant]

Clean and pretty! Thank you 🙏