Seperate CSV converter from FDE Image

[bastianschaffer]

Currently, the CSV converter is part of the FDE Docker Image and executed inside the Docker container automatically.
Since a conversion from MeasureReport to CSV is not really the task of an Evaluator, this should be seperated according to the following details:

• the CSV Converter should be a stand-alone bash script
• it receives either a URL or a file name as input for the MeasureReport
• if it is a URL, the CSV Converter uses curl to get the MeasureReport from the given FHIR Server URL
• this requires also basic auth, OAuth or a Bearer Token as input arguments
• it gets an output directory as an argument that will be used to store the resulting CSV files
• this will require the machine that the CSV conveter is run on to have jq and curl installed, which needs to be documented