Redfish Interface Implementation for Hypervisor-IPv4 Static IP

This commit implements the GET command for Power hypervisor
Virtual Management Interface's IPv4 static network.

Tested by:
1. GET https://${bmc}/redfish/v1/Systems/hypervisor/EthernetInterfaces/intf0
2. GET https://${bmc}/redfish/v1/Systems/hypervisor/EthernetInterfaces/intf1
3. Successfully ran the Redfish Validator

*** /redfish/v1/Systems/hypervisor/EthernetInterfaces/intf0
         Type (#EthernetInterface.v1_5_1.EthernetInterface), GET SUCCESS (time: 0.400974)
         PASS

*** /redfish/v1/Systems/hypervisor/EthernetInterfaces/intf1
         Type (#EthernetInterface.v1_5_1.EthernetInterface), GET SUCCESS (time: 0.366143)
         PASS

Signed-off-by: Sunitha Harish <sunithaharish04@gmail.com>
Change-Id: Ie0f6996a01f9772e91dcf6d5045a20f3a257f67c
diff --git a/redfish-core/include/redfish.hpp b/redfish-core/include/redfish.hpp
index f8524ac..6f2e753 100644
--- a/redfish-core/include/redfish.hpp
+++ b/redfish-core/include/redfish.hpp
@@ -183,6 +183,7 @@
 
         nodes.emplace_back(
             std::make_unique<HypervisorInterfaceCollection>(app));
+        nodes.emplace_back(std::make_unique<HypervisorInterface>(app));
         nodes.emplace_back(std::make_unique<HypervisorSystem>(app));
 
         for (const auto& node : nodes)