Pipda

- ✨ Allow `__array_ufunc__` to be registered on Expression by `register_expr_array_func`

What's Changed
* 0.9.0 by pwwang in https://github.com/pwwang/pipda/pull/42


**Full Changelog**: https://github.com/pwwang/pipda/compare/0.8.2...0.9.0

- ✨ Support other numpy ufunc methods

What's Changed
* 0.8.2 by pwwang in https://github.com/pwwang/pipda/pull/41


**Full Changelog**: https://github.com/pwwang/pipda/compare/0.8.1...0.8.2

- ✨ Allow verb to be a placeholder (without any types registered)
- ✅ Add test for npufuncs to be used in verbs

What's Changed
* 0.8.1 by pwwang in https://github.com/pwwang/pipda/pull/40


**Full Changelog**: https://github.com/pwwang/pipda/compare/0.8.0...0.8.1

- patch classes if they have piping operator method
- auto register numpy ufuncs
- pump executing to 1.1.1 to fix pwwang/datar149

What's Changed
* 0.8.0 by pwwang in https://github.com/pwwang/pipda/pull/39


**Full Changelog**: https://github.com/pwwang/pipda/compare/0.7.6...0.8.0

- 🐛 Fix `numpy.ndarray` as data argument for verbs
- 🚚 Rename `Expression.operator` to `Expression._pipda_operator`

What's Changed
* 0.7.6 by pwwang in https://github.com/pwwang/pipda/pull/38


**Full Changelog**: https://github.com/pwwang/pipda/compare/0.7.5...0.7.6

- ✨ Allow function meta infor to be overwritten