Update GenericHealthCheck to send vnf-host-ip-address in the payload

vnf-host-ip-address needs to be sent in the payload. When the payload is generated on this call in ApplicationControllerAction.java:

Optional<String> payload = PayloadClient.healthCheckFormat(vnfName, vnfHostIpAddress);

It doesn’t look the vnfHostIpAddress is set to anything in the payload, so we need to code in GenericVnfHealthCheck, update 
RequestParametersHealthCheck bean to take in vnfHostIpAddress, update 
healthCheckFormat method to set vnfHostIpAddress.