New cloud monitoring agent is missing some functionality that old agent repo had

[ocofaigh]

There seems to be some gaps in the new monitoring agent module that were supported in the terraform-ibm-observability-agents...

• cloud_monitoring_secret_name is missing from the new module. From the docs, it looks like this can be set up the helm value global.sysdig.accessKeySecret
• cloud_monitoring_agent_tags and cloud_monitoring_add_cluster_name are missing from the new module. These can be passed using helm valuer global.sysdig.tags (see logic here)

[jor2]

#74