add license file so it can be found by go-licenses

[bollwyvl]

Thanks for this! I'm trying to package go-ipfs for conda-forge, and this is one of the few modules that doesn't have a discoverable license file.

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[willscott]

@bollwyvl Unclear if everything will be in place for the 0.8.0 release to use tagged releases of all packages in a way that works with your go-license check

[bollwyvl]

Thanks for the super-fast response!

Don't worry about me! I'm just trying to get something built (0.7.0), with at least minimum due diligence. This license was already documented, and MIT doesn't require it being distributed, so everybody was already doing everything right!

Now that there is something to point at, I can reference that when packaging. I don't really know how go-licenses works under the hood, but hopefully, after the build, I'll just scrub the offending vendor folders, and manually append the missing licenses to the Big Old Generated Third Party License File... unless somehow the --ignore flag gets merged first (has been sitting for a few months).

Either way, thanks again, and best of luck on 0.8.0 🚀 !

[aschmahmann]

@bollwyvl I saw you filed a bunch of PRs doing this. I think using https://github.com/ipfs/ipfs-repository-template/blob/master/LICENSE.md would be better than just MIT (that file is for the dual Apache-2.0/MIT licensing like what go-ipfs has).

[bollwyvl]

Cool... for the most part, I'm just reacting to what i see in these repos, presumably at the hashes that are baked into 0.7.0... at least this way there's a record of the change.