Merge pull request #71 from elfenpiff/elk-3-move-scripts-into-internal

[#3] Move scripts into internal

Merge pull request #70 from elfenpiff/elk-3-rename-everything-to-iceoryx2

[#3] Reformat code

[#3] Rename elkodon into iceoryx2

Merge pull request #69 from elfenpiff/elk-3-set-license-documents

[#3] Rename copyright_header.txt

[#3] Add licenses

Merge pull request #68 from elfenpiff/elk-3-switch-license

[#3] Update PR template

[#3] Add license header check

[#3] Add license headers

[#3] Add copyright header template and set license header script

Merge pull request #67 from elfenpiff/elk-3-add-announcement-document

[#3] Address announcement improvements