Release v0.6.2

Added support to define tls ciphers

Example:

---
apiVersion: "nats.io/v1alpha2"
kind: "NatsCluster"
metadata:
  name: "tls-nats"
spec:
  # Number of nodes in the cluster
  size: 3

  tls:
    # Certificates to secure the NATS client connections
    serverSecret: "nats-server-tls"

    # Name of the CA in serverSecret
    serverSecretCAFileName: "ca.crt"

    # Name of the key in serverSecret
    serverSecretKeyFileName: "tls.key"

    # Name of the certificate in serverSecret
    serverSecretCertFileName: "tls.crt"

    cipherSuites:
      - TLS_...

    curvePreferences:
      - example...