Add monitoring dashboards & alerts

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Add dashboards for monitoring the important metrics pertaining to the operation of this deployment. Moreover, alerts could be added too.

Monitoring dashboards can be added via the following syntax:

resource "google_monitoring_dashboard" "dashboard" {
  dashboard_json = <<EOF
{
  "displayName": "Demo Dashboard",
  "gridLayout": {
    "widgets": [
      {
        "blank": {}
      }
    ]
  }
}

EOF
}