Replace syncropatch test data with CSV files

[MichaelClerx]

• Removes syncropatch dependency in the tests Make tests work when not installing with -e #36
• Sorts out whatever this was Question: What's happing here? #40
• Minimises needed test data Check if all test data used #37 and allows it to be packaged with pcpostprocess, removing need for Add option to install test data automatically #35