Versioneering

[fred3m]

Strip out setuptools_scm for a more stable native implementation to use SCM tags for version control.

[pmelchior]

I'm not a fan of having to accommodate the LSST stack on our end, but if it doesn't break out stuff, so be it.

[fred3m]

I get that, but this is really making up for a shortcoming of setuptools_scm. The problem is they don't allow for non-version tags at all, so even if I wanted to just implement something on the lsst side (which was my original plan) I can't because when setuptools_scm tries to parse the non-version tags it can't and throws an error.

But this solution is better anyway because it's only a few lines of code to implement what takes them an entire obfuscated package that does God-only-knows what.