Improve filter api (#142)

* feat: improves API of FilterChain

* chore: updates docs for updated API of FilterChain

* chore: bumps versions & updates changelog

chore: bumps version and updates changelog

chore: docs and changelog

feat: adds get_country(mmsi) (#132)

chore: bump version and changelog

fix: fix comparison of True and None for NoneFilter (#129)

Filters (#127)

* feat: add filter chains

* feat: adds useful filters for everyday use

* chore: bump version and changelog

* fix: tuple not subscriptable (old Python)

chore: adds an example for tag blocks (#126)

* chore: adds an example for tag blocks

* chore: version & changelog

adds missing NavigationStatus enum attrs and adds missing ShipType (2…

…9) (#124)

* adds missing NavigationStatus enum attrs and adds missing ShipType (29)

* prepare version 2.5.8

add internal GNSS to EpfdEnum (#122)