Set cpu/memory resources requests/limits for some addons

* Set resource requests and limits for Grafana and CLUO
* Set resource requests for Prometheus, but allow usage
to grow since needs vary widely
* Leave nginx without resource requests/limits for now,
its typically well behaved

addons/grafana/deployment.yaml

@@ -32,11 +32,11 @@ spec:
               containerPort: 8080
           resources:
             requests:
-              memory: 100Mi
               cpu: 100m
+              memory: 100Mi
             limits:
-              memory: 200Mi
               cpu: 200m
+              memory: 200Mi
           volumeMounts:
             - name: config
               mountPath: /etc/grafana