Problem description

As requested within camaraproject/APIBacklog#48 and within the official request https://lists.camaraproject.org/g/tsc/topic/106929579 the Sub Project and its API repository has been renamed from RegionUserCount to RegionDeviceCount.

Expected action

Several tasks have to be executed (beyond the content of the repository):

• Renaming of the repository (done by @hdamker)
• PR with changes to README.md (see Update README.md - rename from RegionUserCount to RegionDeviceCount #25)
• Change name within "About" of the repository
• Name change of *_maintainers and *_codeowners GitHub teams
• Change of Wiki pages
• Change of Template pages within wiki (@wrathwolf)
• Change of mailing list? (maybe not)
• Change within website (@wrathwolf)
• Change within CAMARA presentation (@MarkusKuemmerle)

Additional context