ServiceAccount name + namespace is missing in Entity

[idcmp]

As discussed here: https://groups.google.com/forum/#!topic/vault-tool/WcujbsujdgE it would be ideal if the serviceaccount name (and namespace) was available to templated policies. Right now only the uuid (.metadata.uid) associated with the serviceaccount is exposed.

The uid is used to prevent attacks where the attacker recreates a serviceaccount name that was once deleted and inherits its abilities within Vault. In some (arguably most) environments, convenience outweighs this risk.

[catsby]

Hello! This was added in #53 , so I'm going to close this for now. Thanks!