added draft for abschlussevaluation

This is just a draft. For summary spreadsheets, please see:

• https://invent.kde.org/teams/eco/feep/-/blob/master/measurements/okular/2020-2021/de-uz-215-eng-annex-2-okular.xlsx
• https://invent.kde.org/teams/eco/feep/-/blob/master/measurements/okular/2022-09-22/de-uz-215-eng-annex-2-okular_v2.xlsx
• https://invent.kde.org/teams/eco/feep/-/blob/master/measurements/okular/2024-09-09/de-uz-215-eng-annex-2-okular_v3.xlsx
• https://invent.kde.org/teams/eco/feep/-/blob/master/measurements/okular/2024-09-13/de-uz-215-eng-annex-2-okular_v4.xlsx