feat(object): add CGObject::GetGUID

src/object/client/CGObject.cpp

@@ -23,3 +23,7 @@ uint32_t CGObject::TotalFields() {
 uint32_t CGObject::TotalFieldsSaved() {
     return CGObject::GetBaseOffsetSaved() + 3;
 }
+
+WOWGUID CGObject::GetGUID() const {
+    return this->m_obj->m_guid;
+}

src/object/client/CGObject.hpp

@@ -29,6 +29,9 @@ class CGObject {
         uint32_t* m_objSaved;
         uint32_t m_memHandle;
         OBJECT_TYPE_ID m_typeID;
+
+        // Public member functions
+        WOWGUID GetGUID() const;
 };
 
 #endif