Suntime

Bugfixes:

* Back to work with datetime to [avoid breaking changes](https://github.com/SatAgro/suntime/issues/27)
* [Set default values on methods also to avoid incompatibility](https://github.com/SatAgro/suntime/issues/27)

Bugfixes

* [Delete unnecessary prints](https://github.com/SatAgro/suntime/issues/26)

It has taken some time but finally its here a new release that includes:

**Features**

- Unique sunrise (`get_sunrise_time`) and sunset (`get_sunset_time`) methods (note that `get_local_sunrise_time` and `get_local_sunset_time` are deprecated now)
- [Added seconds calculation](https://github.com/SatAgro/suntime/issues/22), although note that this also depends on the orography so it is just an approximate calculation

**Bugfixes**

- [Big issue of suntime](https://github.com/SatAgro/suntime/issues/16)
- [Inconsistent sunrise times between neighbouring zones](https://github.com/SatAgro/suntime/issues/17)
- [Bug in day wrap for sunset times](https://github.com/SatAgro/suntime/issues/21)

**Dev-ops**

- [Added tests](https://github.com/SatAgro/suntime/issues/9)
- Included GitHub actions for linting and testing on python 3.8 to 3.10

Solved issue with corner case (sunset on next day but the current month has less total days).

Solved issues with installation.

Solved issues with default today dates.
Improved setup and documentation.