v1.2.0

• Changes
  • Improve device detection by using 0-byte writes on some I2C addresses and
    1-byte reads on others. This matches the i2c-tools heuristic and detects at
    least on more device that wasn't detected before.
  • Simplified NIF by deleting a lot of flexibility that didn't end up being
    useful. Also moved functionality around so that it could be implemented more
    simply.