consistent implementation of liveness and readiness probes accross all openstack helm charts

Although openstack helm supports the implementation of liveness and readiness probes. There is currently no coherent way of implementing them. This proposes a blueprint for determining the kind of probe (tcpSocket, httpGet or command) to implement based on the service/container being probed, whether its a local Service, API or Port. . The probes fields (periodSeconds, InitialDelaySeconds, timeoutSeconds, successThreshold and failureThreshold) should also be configured taking into consideration container bootup time and its general responsiveness.