Initial work on CActor.cpp

Former-commit-id: 44b17813bd

include/rstl/single_ptr.hpp

@@ -19,7 +19,13 @@ public:
     delete x0_ptr;
     x0_ptr = ptr;
   }
+  operator bool() const { return x0_ptr != nullptr; }
+  T& operator*() { return *x0_ptr; }
+  const T& operator*() const { return *x0_ptr; }
 };
+
+typedef single_ptr<void> unk_singleptr;
+CHECK_SIZEOF(unk_singleptr, 0x4);
 } // namespace rstl
 
 #endif