Pyroutelib3

**Warning!** This version does not work when auto-downloading tiles. Use [1.1](https://github.com/MKuranowski/pyroutelib3/releases/tag/1.1) instead!

Changelog:

- Adding support for turn restrictions
- Making Router a subclass of Datastore, removing the need to call router.data.×
- Merging code into 1 file by simplifying data download process

Changelog:

* Changed distance formula to Haversine one
* Added support for `oneway:<transport_type>` tags

Changelog:
- Adding default oneway=true on roundabouts
- Fixed handling of ways with both highway=* and railway=*
- Small changes to storing downloaded tile names
- Added foot routing over highway=platform and railway=platform

A hotfix to fix an issue caused by incorrect oneway=-1 implementation.

Changelog:

* Fixed OSM file encoding (tries to fix Issue 1)
* Better oneway lines handling
* Allowing for custom route types
* Access keys support