Set up automated integration testing on code templates

If an assignment (or exercise or lecture) is selected in the course planning that contains language `X`, then automatically export the relevant files to set up automated continuous integration tests via github.

Proposal: set it up for python first. Can use this example repository: https://github.com/a-t-0/python-continuous-integration-unit-test-template

The python template files (that are exported to generate the code-latex integrated course folder structure) are located here:
https://github.com/a-t-0/CoursePlanningTemplate/tree/master/CoursePlanningTemplate/processPlanning/assignmentTemplateResources/python

and here:
https://github.com/a-t-0/CoursePlanningTemplate/tree/master/CoursePlanningTemplate/processPlanning/exerciseTemplateResources/Python

and here:
https://github.com/a-t-0/CoursePlanningTemplate/tree/master/CoursePlanningTemplate/processPlanning/lectureTemplateResources/Python

TODO: the codes should be refactored into a single folder which are picked up and placed in the assignment/exercise/lecture folders respectively.

The code that exports the python code is currently still in the modules (alt+f11 in excel) of a closed-source `.xlsm` file. This file:
https://github.com/a-t-0/CoursePlanningTemplate/blob/master/CoursePlanningTemplate/processPlanning/doPlannings.xlsm
Todo: convert the closed-source xlsm file to an openoffice calc vba workbook (or python code with pyexcel).