[COMMON][ETCD-INIT] Add etcd-init chart

- etcd-init chart will provision the users
and roles in a running etcd instance

- Change etcd container name for readiness
init container to work

Issue-ID: OOM-2746
Signed-off-by: krishnaa96 <krishna.moorthy6@wipro.com>
Change-Id: I0cb6d3830b0048c4d70f381815bd3f858ec31ae7
7 files changed