This PR moves cni related code from network package to cni. (#130)

* configure dnssuffix & dnsServerList

* add dns info to conflist

* change case for dns info

* remove hardcoding

* remove hardcoding

* parse k8s pod info

* add AdditionalArgs and Dns info to conflist

* serialize policies

* program route info

* start addressign ipam ip leak

* fix 1) ip inconsistency in k8s & pod. 2) IP leak in IPAM.

* remove comments

* separate windows & linux

* remove dnsServers

* remove comments

* address comments

* add dns verification

* abstract linux policy struct

* remove setPolicies

* separte Windows & Linux code

* change package

Author: Yongli Chen

cni/network/network.go

@@ -179,7 +179,7 @@ func (plugin *netPlugin) Add(args *cniSkel.CmdArgs) error {
 
 	// Initialize values from network config.
 	networkId := nwCfg.Name
-	endpointId := network.GetEndpointID(args)
+	endpointId := GetEndpointID(args)
 
 	nwInfo, nwInfoErr := plugin.nm.GetNetworkInfo(networkId)
 
@@ -365,7 +365,7 @@ func (plugin *netPlugin) Delete(args *cniSkel.CmdArgs) error {
 
 	// Initialize values from network config.
 	networkId := nwCfg.Name
-	endpointId := network.GetEndpointID(args)
+	endpointId := GetEndpointID(args)
 
 	// Query the network.
 	nwInfo, err := plugin.nm.GetNetworkInfo(networkId)