Paul Sokolovsky 7203b58e87 extmod/modubinascii: Add "separator" argument to hexlify().
This is extension to CPython, it allows to easily produce human-readable
hex dump:

>>> ubinascii.hexlify(b"\xaa\x55\xaa\x55", b" ")
b'aa 55 aa 55'
2015-12-26 02:15:56 +02:00
..
2015-03-19 00:04:12 +02:00
2015-12-18 22:01:03 +02:00
2015-12-18 22:01:03 +02:00