* [chore] Remove years from all license headers
Years or year ranges aren't required in license headers. Many projects
have removed them in recent years and it avoids a bit of yearly toil.
In many cases our copyright claim was also a bit dodgy since we added
the 2021-2023 header to files created after 2021 but you can't claim
copyright into the past that way.
* [chore] Add license header check
This ensures a license header is always added to any new file. This
avoids maintainers/reviewers needing to remember to check for and ask
for it in case a contribution doesn't include it.
* [chore] Add missing license headers
* [chore] Further updates to license header
* Use the more common // indentend comment format
* Remove the hack we had for the linter now that we use the // format
* Add SPDX license identifier
* correct path of foss_satan
* add APIri and notes
* test create forward note
* rename target => receiving account
* split up create into separate funcs
* update extractFromCtx
* tidy up from federator processing
* foss satan => http not https
* check if status in db
* mock dereference of status from IRI
* add forward message deref test
* update test with activities
* add remote_account_2 to test rig
