- changed cap names

Changed the names of the caps so that they make sense with our classes.
- removing caps

We Should remove the caps to keep things clean
- changed class name
- added base contact menu

Changed the class name and include so that it makes sense. It's the
class of contact and it registers the 2 cpts of user and company.

Put the CPT's under the contacts menu so that they are somewhere during
development. Long term they will be hidden by default and you'll be able
to invoke them with a 'dev' constant or something fancy like that.
- added p2p

We need p2p for the project contact relationships and now we have it.
- registered wpproj users to companies

Registered the connection type between user cpt and company cpt
registered connection for users to wpproj users