fadvisor use servicemonitors to configure prometheus scrape

[tommylxf]

k8s version: 1.21.10
fadvisor version: v0.3.0

[zhuw0312]

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: crane-metrics
  namespace: monitoring
  labels:
    release: prometheus-operator
spec:
  namespaceSelector:
    matchNames:
    - crane-system
  selector:
    matchLabels:
      app.kubernetes.io/name: fadvisor
  endpoints:
  - port: http