`False` and `True` are reserved keywords

[bruno-f-cruz]

    description: Specifies the state of the digital input lines.
    bits:
      False: {value: 0x0, description: The state is False}
      True: {value: 0x1, description: The state is True}

Add this to a bitmask and try to parse
A possible solution was suggested in #48

[bruno-f-cruz]

ok this goes deeper. Apparently YML 1.1 actually reserves a bunch of words that get evaluated to true/false:

https://stackoverflow.com/questions/42283732/are-on-and-off-supposed-to-be-interpreted-as-true-or-false-in-yaml-1-2