Add initial egress policy in space test
Add initial egress policy in space test

- fix existing egress policy tests to use new destination objects and
egress policy endpoints

[#160305114]

Signed-off-by: Christian Ang <15ae83feccf4d84083a62aba1cdf46bd8ce2e33b@pivotal.io>

cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release