Change banner printout and add TODO reminders
Reformat C code in grammar file core.y
Fix warning in read_label() and read_local()
Reformat mnemo_load8bit in core.y
Reformat mnemo_load16bit in core.y
Reformat mnemo_exchange in core.y
Reformat -mnemo_arithm8bit in core.y part 1

MNEMO_ADD to MNEMO_OR
Reformat mnemo_arithm8bit in core.y part 2
Reformat mnemo_arithm8bit in core.y part 3
Reformat mnemo_arithm16bit in core.y
Reformat mnemo_general in core.y
Reformat mnemo_rotate in core.y part 1
Reformat mnemo_rotate in core.y part 2
Reformat mnemo_rotate in core.y part 3
Reformat mnemo_bits in core.y
Reformat mnemo_io in core.y
Reformat mnemo_jump in core.y
Reformat mnemo_call in core.y
Reformat value in core.y
Reformat value_real in core.y