another big revision to acls proposal [ci skip]
another big revision to acls proposal [ci skip]

- revised overall concepts
- revised ACL naming and dynamic ACL types
- revised model and policy introspection
- partially proposed a rights introspection mechanism

this is close to being ready to review and discuss in detail prior to
prototype implementation...

informatics-isi-edu/ermrest,informatics-isi-edu/ermrest