Add active prop to EuiOutsideClickDetector

[chandlerprall]

EuiOutsideClickDetector should be pausable based on an active prop. EuiPopover should use this to pause its click detector when the popover is closed.

[thompsongl]

Is this different than the isDisabled prop that EuiOutsideClickDetector already accepts (and uses to "exit" the outside click handler?

[chandlerprall]

Heh. Nope. Let's use isDisabled from the popover then :)

[thompsongl]

😄 That's what I figured. EuiColorPicker has the same problem as EuiPopover here, so I'll address both.