Allow Reports to include devices not on a Tree

[TheWitness]

Feature Request

Is your feature request related to a problem? Please describe

A glaring feature defect in Cacti's reporting interface is the the ability to add Devices to reports.

Describe the solution you'd like

Add this feature to the various Reporting Interfaces.

[TheWitness]

Though there were multiple commits around this subject, this was the first commit: 2f926d4