[pkg-go] RFS: three different ones

[Paride Legovini]

Here they are, waiting to be reviewed:

https://salsa.debian.org/go-team/packages/golang-github-ulule-limiter

https://salsa.debian.org/go-team/packages/golang-github-lucasb-eyer-go-colorful

https://salsa.debian.org/go-team/packages/golang-github-gdamore-encoding

Note that "limiter" and "go-colorful" have a workaround for #904261 in
d/rules. The packages are still UNRELEASED and not tagged. These are
part of the work needed to package browsh (ITP #904132).

If you think they're ready feel free to s/UNRELEASED/unstable/ and tag.

On golang-github-gdamore-encoding: please set the salsa default branch
to "master". Now it it set to "unstable", as it was pushed before
master, and I don't have the permissions to change it.

Thank you,

Paride