Use istio to route traffic, add support for different versions of one…

[SniXosha]

• Added support for multiple versions of one service
• New API:

  osdf deploy component -m replace - deploy component replacing other versions
  osdf deploy component -m hidden - deploy component not affecting other versions
  osdf route component{v2} 5 - route 5% of traffic to v2 version
  osdf route component{v2} mirror - mirror traffic  to version v2
  osdf route component{v2} header - add possibility to access v2 version using header

• New status example:

COMPONENT                             VERSION    TRAFFIC    STATUS      REPLICAS
job-component                         v1         -          SUCCEEDED   job
example-producer{v4}(not deployed)               
                                      v1         90%,header RUNNING     1/1
                                      v2         10%        RUNNING     1/1
                                      v3         -          RUNNING     1/1
some-other-component{v2}               
                                      v1         90%        RUNNING     1/1
                                      v2         mirror     FAILED      1/1
another-component{v1}                 ?          ?          NOT_FOUND   ?