error in _parse_shake_report wrong bit mask

[bradcar]

Noticed a typo for the shake report. In the SH-2 doc (6.5.32 page 78) it shows the lower 3 bit contain the x,y,z status bits. but the bit mask here has 0x111, it should be 0b111 or likely clearer for a "<H" may be 0x07.

in init.py line 302

def _parse_shake_report(report_bytes: bytearray) -> bool:
    shake_bitfield = unpack_from("<H", report_bytes, offset=4)[0]
    return (shake_bitfield & 0x111) > 0

I don't have CircuitPython, so I don't have any way to test, so I won't do a pull request. What I believe will fix it:

def _parse_shake_report(report_bytes: bytearray) -> bool:
    shake_bitfield = unpack_from("<H", report_bytes, offset=4)[0]
    return (shake_bitfield & 0x07) > 0