feat(object): add CGUnit::GetDisplayID

src/object/client/CGUnit.cpp

@@ -25,6 +25,10 @@ uint32_t CGUnit::TotalFieldsSaved() {
     return CGUnit::GetBaseOffsetSaved() + 123;
 }
 
+int32_t CGUnit::GetDisplayID() const {
+    return this->Unit()->displayID;
+}
+
 CGUnitData* CGUnit::Unit() const {
     return this->m_unit;
 }

src/object/client/CGUnit.hpp

@@ -82,6 +82,9 @@ class CGUnit {
         static uint32_t TotalFields();
         static uint32_t TotalFieldsSaved();
 
+        // Public member functions
+        int32_t GetDisplayID() const;
+
     protected:
         // Protected member variables
         CGUnitData* m_unit;