Add a project to the flavor access list

    CLI Example:

    .. code-block:: bash

        salt '*' nova.flavor_access_add flavor_id=fID project_id=pID

def flavor_access_add(flavor_id, project_id, profile=None, **kwargs):
    '''
    Add a project to the flavor access list

    CLI Example:

    .. code-block:: bash

        salt '*' nova.flavor_access_add flavor_id=fID project_id=pID
    '''
    conn = _auth(profile, **kwargs)
    return conn.flavor_access_add(flavor_id, project_id)