Initial commit for Ruby Env

[stahnma]

No description provided.

[garbas]

@stahnma I've made the ruby environment more minimal, I know this is now what you intended when you created this environment. Just like I did with other environments.

I'm trying to keep each environment similar to one another in terms of scope and functionality. I'm all open to changing that, but maybe this would be a job for another PR.

I've added a review on this repo, if you think changes are somewhat ok (we can always change them) please go ahead and merge this PR.

[stahnma]

Basically, if you need to run gem install or bundle you want several of those C Extensions.

If we add gum and which (which are totally not needed for ruby), why wouldn't we pick the the things you do need for ruby?

These are the ones that I would really pick by default.

gcc-unwrapped.pkg-path = "gcc-unwrapped"
libxml2.pkg-path = "libxml2"
libxslt.pkg-path = "libxslt"
gnumake.pkg-path = "gnumake"
binutils.pkg-path = "binutils"
pkg-config.pkg-path = "pkg-config"
glibc.pkg-path = "glibc"  # glibc only needed on linux builds
glibc.systems = [ "x86_64-linux" , "aarch64-linux"]
openssl.pkg-path = "openssl"
libyaml.pkg-path = "libyaml"