Use provided IP addresses to config BGP in VCPE Template.

Hardcoded values are now replaced by user provided ones.
Merge branch 'develop' into fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded

Conflicts:
	extensions/bundles/vcpe/src/main/java/org/opennaas/extensions/vcpe/manager/templates/Template.java
	extensions/bundles/vcpe/src/main/resources/templates/template.properties
Merge branch 'develop' into fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded
Fix error in vcpe Template with BGP ASNUM.

ASNUM used in BGP was taken from a properties file.
This patch overrides this property value with the value given in VCPENetworkModel.getBGP()
Merge pull request #482 from isartcanyameres/fix/vcpe-builder-bgp-config-ipaddresses-not-hardcoded

Fix/vcpe builder bgp config not hardcoded