Add appreg suspend support for CR's
Add appreg suspend support for CR's

   - perconadb
   - prometheus
   - rabbitmq
   - kafka (strimzi)
   - postgress(acid.zalan.do)

Signed-off-by: Ram <d13d89b1d584c65f419274395026d100b246c43f@portworx.com>

libopenstorage/stork,libopenstorage/stork,libopenstorage/stork