Qlazy

- bug fix(c/py): 'show' command.
- change specification of 'show' command.
- normalize that amplitude of |00..0> is real and positive value.
- eliminate phase factor.
- add 2-qubit Bell-measurement (mb).
- qlazypy: "from qlazypy import QState" available.
- qlazypy: add 'get_amp()' method
- qlazypy: no need to md.free()

- add option to 'show' command (select some qubits).
- add new measurement gates (mx,my,mz).

- measurement from any direction

- make -> cmake

- initial version