Separate out location property from the CreationService,
instead handle in the entanglement bundle; this is
consistent with changes for identity management (attaching
a creator to newly-created domain object models).
for nasa/openmctweb#92
When moving an object that supports composition, child objects which
are originals must have their location updated as well. Children which
are links should not have their location updated, nor should any of
their children be updated.
DomainObjects with a context capability also gain a LocationCapability.
This capability allows you to determine the location of the current
instance of a domain object, and also provides methods for determining
if the current instance of a domain object is a link, or if it is an
original.
The entanglement bundle defines move, copy, and link actions, and
exposes them as context menu actions.
* The Move action moves an object from it's current parent to a new
parent object.
* The Copy action deep-copies an object to a new parent object.
* The Link action links an object to a new parent object.
These actions are implemented by three new services: moveService,
copyService, and linkService.
Mocks are provided for each service for easy testing of components
that depend on them.
Additionally, this bundle provides a DomainObjectFactory that simplifies
the construction of mockDomainObjects for tests.
These actions are exposed to the user as context menu options.
