Motion time period bugfix

This release introduces a bugfix with motion time period algorithm where std::time::Instant was incorrectly used to determine motion time period and thus this time was starting from beginning each time.

Small bugfix with setting pin state

Merge pull request #7 from mateusz-szczyrzyca/toggle-fix

Removed unnecessary toggle in pin state

2.0.0

Simplified API, tests fixed.

New API and performance improvements

Merge pull request #3 from mateusz-szczyrzyca/new-examples

New examples because of changes in the API

v0.1.2

Initial release