Change management mass update CI

Change Management - mass update CI enables users to mass update a set of CIs for a specific class.

Note: This is available for normal and emergency changes only.
For example, a series of laptops require their domain to be changed. In this case, this can be included in the proposed change. When the proposed change is saved, an XML proposed update is added to the affected CIs. This can then be applied when the change is in the implement or review state.