Add license header

@ewoken said :

Hi everyone,

I used this script to add license header to all source files:

for f in **/*.{ts,js}; do
  cat license-header.txt $f > $f.new
  mv $f.new $f
done

I also add the license-header.txt file.

Feel free to comment my PR ! ;-)

Closed #1217 (closed)

mentioned in merge request !1249 (closed)

changed title from WIP: Add license header to Add license header

Thank you very much @ewoken , for me everything is good, I'm ready to merge, I await the endorsement of @c-geek :)

Thank you very much, indeed!

Feel free to merge @librelois!

mentioned in commit 019a4a7a

merged