Adding packetcable feature

1) Feature Tests Pass: https://jenkins.opendaylight.org/packetcable/job/packetcable-verify/org.opendaylight.packetcable$features-packetcable/35/consoleText
2) Features Comply with Guidelines: https://git.opendaylight.org/gerrit/gitweb?p=packetcable.git;a=blob;f=features-packetcable/src/main/resources/features.xml
	a) Feature Names: Prefixed with 'odl-' : https://wiki.opendaylight.org/view/Runtime:Karaf_Features_Guidelines#Feature_Naming
	b) Features Descriptions: Present https://wiki.opendaylight.org/view/Runtime:Karaf_Features_Guidelines#Description
	c) Features Start-Levels: No start-levels on <bundle> elements or <feature> elements
3) Features Tested: Features have been tested for functionality with
	a) feature:install odl-packetcable-all
4) Integration Test Impact: none

Change-Id: Iad97cbef8e5faf17ae1527e23c6a02ae9cb41e41
Signed-off-by: Thomas Kee <xsited@yahoo.com>