Postgrest-py

Added

* Use Github Actions

Changed

* Move to a new home: [supabase/postgrest-py](https://github.com/supabase/postgrest-py)

Removed

* Remove Travis CI

Removed

* Remove dummy test cases
* Remove PyPy3 from Travis CI

Added

* Add some basic test cases for `PostgrestClient`
* Use Travis CI

Changed

* Change behavior of `RequestBuilder.filter()`
* Change signature of general filters

Removed

* Remove `RequestBuilder.filter_in()` and `RequestBuilder.filter_out()`

Fixed

* Fix `PostgrestClient.schema()` not actually work

Added

* Support basic authentication
* Support stored procedures (RPC)
* `RequestBuilder.select()` now accepts `columns` as variable-length arguments
* Add `RequestBuilder.not_` getter
* Add `RequestBuilder.ov()`

Changed

* Rename `Client` to `PostgrestClient` and deprecate the old name
* Deprecate `PostgrestClient.from_table()`

Removed

* Remove `RequestBuilder.not_()`
* Remove `RequestBuilder.ova()` and `RequestBuilder.ovr()`

Fixed

* Fix a typo in `Client.from_()`

Added

* Add basic features