+ xo-alloc + xo-object + xo-alloc docs + GC utests

xo-object/include/xo/object/Numeric.hpp

@@ -0,0 +1,20 @@
+/* @file Numeric.hpp
+ *
+ * author: Roland Conybeare, Aug 2025
+ */
+
+#include "xo/alloc/Object.hpp"
+
+namespace xo {
+    namespace obj {
+        class Numeric : public Object {
+            // inherited from Object..
+
+            //virtual std::size_t _shallow_size() const override;
+            //virtual Object * _shallow_copy() override;
+            //virtual std::size_t _forward_children() override;
+        };
+    } /*namespace obj*/
+} /*namespace xo*/
+
+/* end Numeric.hpp */