Add resource limits for waf-enforcer and waf-config-mgr

[anderius]

Some organizations require resource limits on all resources.

It would be nice if the Helm chart could add values for that on all containers.

My team currently has to patch the chart, and change _helpers.tpl for waf-enforcer and waf-config-mgr.

Acceptance Criteria

• [ ] CPU and Memory limits can be set for waf-enforcer in helm
• [ ] CPU and Memory limits can be set for waf-config-mgr in helm
• [ ] Update helm documentation to reflect additional configuration changes