dynamic fq_name setting based on the parent obj and request json

[cijohnson]

Current implementation of vnc api client library, frames fq_name of the object based on the following criteria

1. parent obj
2. fq_name set in request body
3. No parent

we need to do similar thing in go-api-server as well.

code snippet:

if parent_obj: self.parent_type = parent_obj._type

copy parent's fq_name

        self.fq_name = list(parent_obj.fq_name)
        self.fq_name.append(name)
    elif kwargs_parent_type and kwargs_fq_name:
        self.parent_type = kwargs_parent_type
        self.fq_name = kwargs_fq_name
    else: # No parent obj specified
        self.parent_type = 'project'
        self.fq_name = [u'default-domain', u'default-project']
        self.fq_name.append(name)