Add test plan folder structure, template and readme

[cdingm]

Closes Gamify-IT/issues#191
there is now a folder structure i came up with
a readme how this should be used
and a translated template of the testplan

feel free to discuss if this structure makes sense, and if the readme is understandable

[cdingm]

pdfs in github mmhhhh i dont like it, but well talk about it in the daily

[delvh]

Regarding the .gitkeeps: I think they are currently at the wrong location:
I would suggest not separating in front- and backend as a separate folder level, but to instead split the services into those parts, so that we have i.e. dev-manuals/test-plans/lecturer-interface-backend/plans/.gitkeep and dev-manuals/test-plans/lecturer-interface-frontend/plans/.gitkeep instead of dev-manuals/test-plans/lecturer-interface/backend/plans/.gitkeep and dev-manuals/test-plans/lecturer-interface/frontend/plans/.gitkeep.

[cdingm]

Regarding the .gitkeeps: I think they are currently at the wrong location: I would suggest not separating in front- and backend as a separate folder level, but to instead split the services into those parts, so that we have i.e. dev-manuals/test-plans/lecturer-interface-backend/plans/.gitkeep and dev-manuals/test-plans/lecturer-interface-frontend/plans/.gitkeep instead of dev-manuals/test-plans/lecturer-interface/backend/plans/.gitkeep and dev-manuals/test-plans/lecturer-interface/frontend/plans/.gitkeep.

done

[cdingm]

what did your commits do? wasnt that what i did?

[delvh]

LGTM from me.
Do we wait for other reviewers, or can we merge now?