-Code to add Relation between Parent & it's Child Services
-Node used to connect parent and child in AAI is ComposedResource
-Parent Service can be related with multiple Child Services via composedResource Node.
Issue-ID: SO-3832
Change-ID: I73f97f986a817d423f92f8d922dcd9647b8a6adc
Signed-off-by: sanket12345 <SX00562924@techmahindra.com>
Signed-off-by: Lukasz Rajewski <lukasz.rajewski@orange.com>