Add codfw in various places

public/private networks in network.pp
detection in realm.pp for stuff like $::site
domain_search for bast4001 and iron
torrus now has cr{1,2}-codfw and asws

Change-Id: Icc6fce508504c0faf2929a5a92c60a3a6baf6f32
Merge "Add codfw in various places" into production