Pupil-invisible-lsl-relay

- Gracefully handle xdf files without required time alignment information

- Detect missing dependencies and provide instructions on how to install them
- Document how to install time alignment dependencies in the corresponding guide

- Fix displayed version in docs

- Estimate and correct clock offset between Companion device and relay
(:py:meth:`pupil_labs.invisible_lsl_relay.relay.DataReceiver.estimate_clock_offset`)
- Add estimated clock offset to acquisition info
- Add command line tool for lsl-to-cloud time alignment and vice versa
- Change the events sent for time alignment to include a unique session id
- Add command line tool for monitoring sampling rates in real time
- Add example on how to apply estimated time alignments
- Update module skeleton
- Update pre-commit config
- [Backwards-incompatible API change] Restructured
(:py:class:`pupil_labs.invisible_lsl_relay.relay.Relay`) two-step setup into a single
:py:meth:`class method call <pupil_labs.invisible_lsl_relay.relay.Relay.run>`

- Add check for correct epoch
- Allow for direct device selection through command line argument
- Outlet prefix can be set though command line argument
- Restructure relay module to accept device ip and port explicitly, instead of accepting DiscoveredDeviceInfo
- Add an acquisition field to the outlet metadata, including manufacturer, model, version and the
serial number of the world camera

- Fix default duration of network search (10 seconds)
- Fix default interval for time synchronization events (60 seconds)