add version and oper state for some objects (#25)

* - add version in api
- add cfgProperties adn operProperties

* fix linksets with operstate

* add versioning in api, other fixes

* add network oper proerties

* avoid generating operlinks

* avoid operlinks for client code gen

* global oper state

* Support for external contracts (provided and consumed) for ACI (#24)

* Support for external contracts (provided and consumed) for ACI

* Add tenant as part of the key for external contracts object

* Just have a single link-set for all contract groups

* Just have a single external contracts array at the epg level.

* Add validators for contracts group name and tenant name for the external contracts object

* merge contract groups change

* rebase to latest

* add versioning in api, other fixes

* add network oper proerties

* avoid generating operlinks

* avoid operlinks for client code gen

* global oper state

* add version to external contracts object

Author: Vipin Jain

appProfile.json

@@ -4,8 +4,9 @@
 		{
 			"name": "appProfile",
 			"type": "object",
+			"version": "v1",
 			"key": [ "tenantName", "appProfileName" ],
-			"properties": {
+			"cfgProperties": {
 				"tenantName": {
 					"type": "string",
 					"title": "Tenant Name",

bgphost.json

@@ -2,9 +2,10 @@
     "name": "contivModel",
     "objects": [{
         "name": "Bgp",
+        "version": "v1",
         "type": "object",
         "key": ["hostname"],
-        "properties": {
+        "cfgProperties": {
             "hostname": {
                 "type": "string",
                 "title": "host name",