Identity Credential: API changes for Android 12

- Add PackageManager system features (with versions) for the normal
  and direct access store
- Deprecate IdentityCredentialStore.deleteCredentialByName() and add
  IdentityCredential.delete() as a replacement.
- Add IdentityCredential.proveOwnership()
- Add IdentityCredential.update()
- Add docs for ProofOfBinding CBOR in X.509 extension of certificate
  for AuthenticationKey
- Add IdentityCredential.setAllowUsingExpiredKeys()
- Add version of IdentityCredential.storeStaticAuthenticationData()
  which takes a an expiration date. Deprecate the old variant of
  this method.

Bug: 170146643
Test: atest android.security.identity.cts
Change-Id: I39a0ed65ed6efaa424ada7a9495e3b1da67cf452