VOM: Additions to allow uses to UT applications that use VOM

- find object by key
- compare objects

Change-Id: I36ec8612be9482bcef7ceced2a59f7403f77b3e8
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
diff --git a/src/vpp-api/vom/lldp_global.cpp b/src/vpp-api/vom/lldp_global.cpp
index e7d425e..7e701dc 100644
--- a/src/vpp-api/vom/lldp_global.cpp
+++ b/src/vpp-api/vom/lldp_global.cpp
@@ -48,6 +48,19 @@
   m_db.release(m_system_name, this);
 }
 
+const lldp_global::key_t&
+lldp_global::key() const
+{
+  return (m_system_name);
+}
+
+bool
+lldp_global::operator==(const lldp_global& l) const
+{
+  return ((key() == l.key()) && (m_tx_hold == l.m_tx_hold) &&
+          (m_tx_interval == l.m_tx_interval));
+}
+
 void
 lldp_global::sweep()
 {
@@ -92,7 +105,13 @@
 std::shared_ptr<lldp_global>
 lldp_global::find_or_add(const lldp_global& temp)
 {
-  return (m_db.find_or_add(temp.m_system_name, temp));
+  return (m_db.find_or_add(temp.key(), temp));
+}
+
+std::shared_ptr<lldp_global>
+lldp_global::find(const key_t& k)
+{
+  return (m_db.find(k));
 }
 
 std::shared_ptr<lldp_global>