Implement memory algorithms

Several algorithms in `` that have parallel overloads in C++ are not implemented in Thrust: `destroy`, `destroy_n`, `uninitialized_move`, `uninitialized_move_n`, `uninitialized_default_construct`, `uninitialized_default_construct_n`, `uninitialized_value_construct`, and `uninitialized_value_construct_n`. These are not a high priority, but these are necessary if we want NVC++'s parallel algorithms support to be complete.