add support for v2 DataONE API.
uncomment other tests in suite.
add a few more checks while debugging test
Use D1client for communication with CN (for integration test)
add test to check sync of access policies of data object referenced in EML 2.0.1 docs
include a few tests for isEqual method. https://projects.ecoinformatics.org/ecoinfo/issues/6407
Use client.MetacatClient instance for all metacat api calls
Test syncing of access policies when updated with legacy metacat api