UAF11 — Inclusion of additional CapableElements

<submission on behalf of James Johnson>
For completeness, consider listing ActualProject and ActualResource as CapableElements. Additionally, Achiever and Desirer should be listed as CapableElements. Please investigate and add if deemed appropriate.

Actual Resource and Actual Service are now Capable Elements

It makes perfect sense to allow Exhibits relationship to be drawn between Actual Resource and Capability. The same applies to Actual Service as the Service Specification is Capable element. However, in case of Actual Project, we do not agree. Actual Project as well as project cannot directly exhibit capability. As for Achiever, all subtypes of achiever are already Capable elements except Actual Project. As for Desirer it would not make sense to have it as Capable Element because one of its subtypes is Capability. Capability cannot exhibit Capability.