Generate configuration files on the fly

Each configuration file is now generated before running
the transformation.

As a result, the relative path to the input and output
projects shall now be configured in the script parse.sh.
Add variables to configure relative path to input/output projects
Use mkdir with -p flag to avoid warning when file exists
Add prefix cumulated- in file names for working groups

This marks the difference between working groups 1, 2, 3, and
cumulated working groups 1, 2, 3, 1+2, 1+3, 2+3, 1+2+3.
Add parse commands for all the new data exports
Parse institution categories instead of institution type categories