Expose automountServiceAccountToken value for ServiceAccount
Related to this BB issue.
This MR allows the ServiceAccount created in this chart to be configured with automountServiceAccountToken via a new value, .Values.serviceAccount.automountServiceAccountToken.
There is no behavior change here (if the option is not specified, as it was before this MR, automountServiceAccountToken: true is assumed). Only a new value exposure.
This is in support of epic &146.
Edited by Justen Mehl