rename repository to lingcod or something that is not year specific

[kellijohnson-NOAA]

• copy repo to the nwfsc-assess organization
• rename to lingcod
• clean out models folder and anything else that doesn't matter
• clean out the git history so it's much quicker to clone the repo

[iantaylor-NOAA]

Repository has been moved to from
https://github.com/iantaylor-NOAA/Lingcod_2021
to
https://github.com/nwfsc-assess/lingcod/

Next steps are clean out models folder and clean out the git history so it's much quicker to clone the repo, but there's no rush on those.