Reformatting iostream and updated

Added format flag `boolalpha`. Found that a function pointer for a reference type causes a crash. The BIN_NOT operation is not compiled as a case of opcode and printed "Unrecognized opcode: 364". So I made a temporary implementation of `std::ios_base& boolalpha(std::ios_base& str);` without bitwise_not operation. Access control is still a problem, so I can only set the ios_base() constructor public(which should be protected).