Add Support for Ultramarine Linux

[8bitZeta]

Just adding support for Ultramarine Linux. It's a Linux distro based on Fedora.

Please let me know if anything needs to be adjusted.

[nothingneko]

Thanks so much for doing this for us! It'll be nice to have this available!

[stanislav-tkach]

Sorry for the late reply and thank you for the pull request!

[ydirson]

I currently have build failures of master related to this, there are a few bits missing from that PR:

error[E0599]: no variant or associated item named `Ultramarine` found for enum `Type` in the current scope
   --> os_info/src/linux/file_release.rs:137:49
    |
137 |                     "ultramarine" => Some(Type::Ultramarine),
    |                                                 ^^^^^^^^^^^ variant or associated item not found in `Type`
    |
   ::: os_info/src/os_type.rs:8:1
    |
8   | pub enum Type {
    | ------------- variant or associated item `Ultramarine` not found for this enum