Improve backend logging

[gr812b]

Backend should have logs on various API calls, worth doing research into a logger than can be enabled / disabled, different levels of logging, etc

Logs for:

• Each API call, the values passed in?, the route, more information about who's calling it?
• Each Analyzer run, preferred general log for all of them ("Running $analyzerName on $inputFiles / $columnNames with values $inputValues and writing to $outputFile
• Error logging