Added support for generic Zigbee LightLink bulbs (such as the GE Wink LED Bulb)

Signed-off-by: Kai Kreuzer <kai@openhab.org>
Merge pull request #93 from kaikreuzer/hue-generic_zll_support

Added support for generic Zigbee LightLink bulbs (such as the GE Wink LE...