Extend cli to allow defining --child across all relevant commands

[rytilahti]

At the moment, only feature and command commands accept --child.
Other relevant commands (on/off, brightness, color temperature, ..) should also accept defining which device is being controlled,
perhaps the best way would be to move the option to be available for all commands?

[rytilahti]

This is not really that necessary for the .0 release (if at all?), so I removed the milestone but keep this open just in case we want to revisit it.

[sdb9696]

Also removed from the 0.7 META series