Add support for custom CA certs and volumes

[alfespa17]

Adding support to add volumes in terrakube components.

Adding support to add custom custom ca certificates using property security.caCerts

security:
  adminGroup: "TERRAKUBE_ADMIN"
  patSecret: "XXXXX"
  internalSecret: "XXXXXX"
  dexClientId: "microsoft"
  dexClientScope: "email openid profile offline_access groups"
  dexIssuerUri: "XXXXXX"
  caCerts:
    terrakubeDemo1.pem: |
      -----BEGIN CERTIFICATE-----
      
      XXX

      -----END CERTIFICATE-----
    terrakubeDemo2.pem: |
      -----BEGIN CERTIFICATE-----
      
      XXX

      -----END CERTIFICATE-----

Terrakube components configuration with custom CA certificates:

## API properties
api:
  enabled: true
  version: "2.7.0"
  replicaCount: "1"
  serviceType: "ClusterIP"
  env:
  - name: SERVICE_BINDING_ROOT
    value: /mnt/platform/bindings
  volumes:
    - name: ca-certs
      secret:
        secretName: terrakube-ca-secrets
        items:
        - key: "terrakubeDemo1.pem"
          path: "terrakubeDemo1.pem"
        - key: "terrakubeDemo2.pem"
          path: "terrakubeDemo2.pem"
        - key: "type"
          path: "type"
  volumeMounts:
  - name: ca-certs
    mountPath: /mnt/platform/bindings/ca-certificates
    readOnly: true
  properties:
    databaseType: "H2"
    

## Executor properties
executor:
  enabled: true
  version: "2.7.0"  
  replicaCount: "1"
  serviceType: "ClusterIP"
  env:
  - name: SERVICE_BINDING_ROOT
    value: /mnt/platform/bindings
  volumes:
    - name: ca-certs
      secret:
        secretName: terrakube-ca-secrets
        items:
        - key: "terrakubeDemo1.pem"
          path: "terrakubeDemo1.pem"
        - key: "terrakubeDemo2.pem"
          path: "terrakubeDemo2.pem"
        - key: "type"
          path: "type"
  volumeMounts:
  - name: ca-certs
    mountPath: /mnt/platform/bindings/ca-certificates
    readOnly: true
  properties:
    toolsRepository: "https://github.com/AzBuilder/terrakube-extensions"
    toolsBranch: "main"

## Registry properties
registry:
  enabled: true
  version: "2.7.0"
  replicaCount: "1"
  serviceType: "ClusterIP"
  env:
  - name: SERVICE_BINDING_ROOT
    value: /mnt/platform/bindings
  volumes:
    - name: ca-certs
      secret:
        secretName: terrakube-ca-secrets
        items:
        - key: "terrakubeDemo1.pem"
          path: "terrakubeDemo1.pem"
        - key: "terrakubeDemo2.pem"
          path: "terrakubeDemo2.pem"
        - key: "type"
          path: "type"
  volumeMounts:
  - name: ca-certs
    mountPath: /mnt/platform/bindings/ca-certificates
    readOnly: true

If the configuration is correct the pods log will show something like: