Adding eman features

Adding eman features

1) Feature Tests Pass: https://jenkins.opendaylight.org/releng/job/eman-merge-boron/2/
2) Features Comply with Guidelines: https://git.opendaylight.org/gerrit/gitweb?p=eman.git;a=blob;f=features/src/main/features/features.xml;
	a) Feature Names: Prefixed with 'odl-' : odl-eman
	b) Features Descriptions: Present
	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-eman
	b) feature:install odl-eman, odl-integration-compatible-with-all
4) Integration Test Impact - none

Change-Id: Ic5fe3d580e28f5d3e9a43687677ac631b29e981b
Signed-off-by: A H <an.ho@huawei.com>