Licenses for nwfsc template

[erinsteiner-NOAA]

I just pasted both licenses into one license file, but looking at how https://github.com/rust-lang/rust handles multiple licenses as well as https://nmfs-opensci.github.io/GitHub-Guide/#sec-license, it looks like maybe it's better to host separate license files and then describe their relevance/use+copyright disclaimer in the README file. I'm not sure if we want to do that now or if @eeholmes we're going to get new guidance soon about our licenses?

[eeholmes]

New guidance is Apache 2.0 for code as that is fully permissible license which GPL2 is copy-left which is restrictive. Still no clear guidance on multiple licenses. Something like the Rust approach was discussed https://github.com/rust-lang/rust?tab=readme-ov-file. I need to get clarity on the COPYRIGHT file. Q is do we need to have data/doc under CC0 or is it ok to have everything under Apache 2.0?