0.18.0

Release notes

Breaking changes

• Changed FlagSet to be more class-like:
  • Added predicate methods and setters for each bit flag
  • Improved string formatting
  • Removed bitwise operators. Bitwise operations can be performed by first casting to a
    std::uint8_t or calling the Raw() method
• Changed format of display_factor and price_ratio to a fixed-precision decimal for
  InstrumentDefMsg and InstrumentDefMsgV1 to match existing values and DBN crate
• Changed format of unit_of_measure_qty to a fixed-precision decimal for
  InstrumentDefMsgV1 to match InstrumentDefMsg