Foreign Services - followup (#307)

* egress services

* nits

* updates

* Egress route

* foreign services

* updates

* doc nits

* fixes

* updates, endpoints

* nits

* updates

* major updates

* updates

* updates

* rename to External Service

Author: rshriram

Makefile

@@ -54,7 +54,6 @@ gogo_mapping := $(subst $(space),$(empty),$(mapping_with_spaces))
 gogo_plugin := $(gogo_plugin_prefix)$(gogo_mapping)$(out_path)
 gogoslick_plugin := $(gogoslick_plugin_prefix)$(gogo_mapping)$(out_path)
 
-
 ########################
 # protoc
 ########################
@@ -252,4 +251,4 @@ clean:
 	rm -rf bin/protoc-min-version-*
 	rm -rf vendor
 
-clean-generated: clean-broker-generated clean-mesh-generated clean-mixer-generated clean-routing-generated clean-rbac-generated
+clean-generated: clean-broker-generated clean-mesh-generated clean-mixer-generated clean-routing-generated clean-rbac-generated