public static RoleMembershipBean create(String userId, String roleId, String organizationId) {
        RoleMembershipBean bean = new RoleMembershipBean();
        bean.setUserId(userId);
        bean.setRoleId(roleId);
        bean.setOrganizationId(organizationId);
        return bean;
    }
A single, qualified, role granted to the user.  Roles in the system
might include things like "Organization Owner", "Client Developer", etc.
A role is qualified by an Organization ID.  The purpose of a role is
to grant permissions to a user.  A role might grant editClient
and viewApi permissions for a particular Organization.

@author eric.wittmann@redhat.com
manager/api/beans/src/main/java/io/apiman/manager/api/beans/idm/RoleMembershipBean.java