Fix/rename coin3d to coin

Should be merged together with axii:

• https://gitlab.com/ArmarX/meta/setup/-/merge_requests/139
• https://gitlab.com/ArmarX/meta/setup/-/merge_requests/175

requested review from @RainerKartmann and @dreher

assigned to @fratty

added 2 commits

• ed364445 - 1 commit from branch master
• a3aefd75 - Merge branch 'master' into fix/rename-coin3d-to-coin

Compare with previous version

approved this merge request

mentioned in commit a025dc44

merged