Scalable Loki Deployment

Look at adding the scalable loki chart as core functionality of this chart and conditionally switch the values between components with a proposed values switch:

strategy: monolith // monolith (default), scalable, microservice

monolith:
  replicas: 1 // used when strategy== monolith
  ...
  
read:
  replicas:  1 // used when strategy == scalable
  ...
  
write:
  replicas: 1 // used when strategy == scalable
  ...

https://github.com/grafana/helm-charts/tree/main/charts/loki-simple-scalable

• Add write folder
• Add read folder
• merge values files
• Update NetworkPolicies #3 (closed)
• Values file schema validation #4 (closed) #5 (closed)