optionally print alerts/messages/telemetry to stdout

[Rahul Jadhav]

Currently, the alerts, logs are mandatorily printed to the stdout. This can induce an overhead in some deployments since the telemetry events could be substantially high. It would be better to enable the print to stdout only on the basis of an env var (PRINT_TO_STDOUT=1).

[Lakshya Gupta]

Hi @nyrahul I would like to work on this issue

[Harisudarsan]

@nyrahul I have linked a pr regarding this issue