Create LICENSE file based on BSD license as per package.xml

[Timple]

Same as norlab-ulaval/libnabo#118

[ethzasl-jenkins]

Can one of the admins verify this patch?

[pomerlef]

There is a duplicate commit from #482. Please update the PR.

[Timple]

I was under the assumption these commits dropped out upon merging the other PR.

But I updated the PR to a single commit 👍

[stephanemagnenat]

The license is wrong, the copyright is clearly not 2021 ASL, as Libpointmatcher was created far earlier and people from other institutions have also contributed. The best would be a date range and something like "the Libpointmatcher authors" regarding who owns the copyright.

[pomerlef]

I'm fine with the changes, but the branch is still out-of-date with master

[Timple]

Out of date how?

It only contains the three commits for the license. Or would you like me to rebase onto master?

[pomerlef]

ok to test