add a pods member to the cluster model
add a pods member to the cluster model

This change adds an array for containing pod information in each
cluster. For now, the information is limited to the ip address, a type,
and the status.

crobby/oshinko-cli,crobby/oshinko-cli,crobby/oshinko-cli,tmckayus/oshinko-cli,radanalyticsio/oshinko-cli,tmckayus/oshinko-cli,radanalyticsio/oshinko-cli,radanalyticsio/oshinko-cli,tmckayus/oshinko-cli