v0.0.8

Added

• Chinese calendar: ChartRequest::chinese_calendar (chinese_calendar in Python and
  JavaScript) adds a chinese_calendar key to a chart: the solar terms from the last 立春
  to the next jie term, the lunar months around the date (leap months by the modern rule,
  including the 2033 case) and the equation of time. Also chinese_calendar(kernels, instant).
• Ba Zi: bazi(calendar, birth, longitude, utc_offset_minutes, options) (no kernel needed;
  Python and JavaScript bazi) casts the Four Pillars on true solar or civil time, with
  either Zi-hour convention: hidden stems, Ten Gods, NaYin, life stages, element balance,
  the lunar date and, given the native's sex, the luck pillars. See docs/chinese.md.