Function copy_store

include/covscript/core/variable.hpp:665–672

		}

		inline void copy_store(const basic_var &other)
		{
			destroy_store();
			if (other.m_dispatcher != nullptr) {
				other.m_dispatcher(operators::type::copy, &other, this);
				m_dispatcher = other.m_dispatcher;
			}
		}

		inline void move_store(basic_var &other)
		{