Add End of Life Field to Device Templates

[timlegge]

This is a fairly quick attempt to add a end of life field to the Device Templates.

Requires:

ALTER TABLE fac_CDUTemplate ADD EndofLife DATE AFTER Model;
ALTER TABLE fac_DeviceTemplate ADD EndofLife DATE AFTER Model;

Definition of End of life is left to the admin - basically what date do you care about most on physical gear - use that one.

I chose Device Template as opposed to individual devices as it is usually a date for a model not an individual device. It can be added to a report (or a new report) to show all devices with a EndofLife in the next year, or an aging for capital budgeting decisions.

Any interest in adding it (or a modified version) as an enhancement