build: `--rpm` & `--deb`

[ken-matsui]

It would be great if we could generate deb and rpm packages with poac build. We may want to refer to and learn how CPack makes those packages.

[zkkv]

Do you mean packages containing the enduser's binary? That seems to be out of scope of a build system made for a specific language.

[ken-matsui]

I don't have experience creating these packages, so this issue was intended to be "discussion needed". If those packages require including binaries, then I agree.

[ken-matsui]

People can use nfpm like #1207. Closing as out of scope.