Identify and implement missing steps for processing google form output to YAML on github

[kvdblom]

Problems added through the google form should be verified and merged into the YAML on github automatically.

Expected process:

• .csv file is (manually) extracted from the google form input (containing one or more new problems)
• .csv file is converted to .yaml format with csv_to_yaml.py (may need some adjustments to work, please check)
• .yaml format is verified with consistency check script
• website is udpated to include the new problem(s) -- This might be manual until this step is also automated (probably through a separate issue/PR)

To do:

• Identify which (other) steps are needed to achieve this.
• Implement (script to execute) these steps
• Test the process works as intended