cristallina

Cristallina data analysis modules and plotting utilities.

Here we collect modules for data analysis, plotting and utility functions for the Cristallina endstation.

The data analysis is based on the common SwissFEL data architecture, with convienent access provided by [sf_datafiles](https://github.com/paulscherrerinstitute/sf_datafiles).

The test suite (based on pytest) requires access to some data only available on either the cristallina consoles or the RA cluster.