Switch VCardParser version if it doesn't match vCard version

If we get a VCardVersionException (i.e., our VCardParser's version
doesn't match the vCard's version), try changing our VCardParser to the
other version (either v2.1 or v3.0), and try parsing again.

Currently, parsing simply fails upon VCardVersionException, so none of
the contacts and call history are downloaded.

Bug: 311404211
Test: atest BluetoothPbapVcardListTest
Test: atest BluetoothPbapRequestPullPhoneBookTest
Test: atest PbapClientConnectionHandlerTest
Flag: EXEMPT, code path is not executed on phones, ramping may be close
to non-existent and possibly not enough users to pass the gantry gate,
unit tests were added.

Change-Id: I005060a57b6d5c12049a717ea9c6c6041192e694