Add initial support for a virtual attribute subsystem, and implement a few ...

neil_a_wilson

03.52.2007 09dc131d36b33e58f728316c3d445dfc3b865be4

opendj-sdk/opends/src/server/org/opends/server/api/VirtualAttribute.java does not exist in tree d9d2a114e3b64c1594eed3e2dee3d6d7356548d5