gnu: go-github-com-alsm-ioprogress: Move to golang-xyz.

* gnu/packages/golang.scm (go-github-com-alsm-ioprogress): Move from
here ...
* gnu/packages/golang-xyz.scm: ... to here.

Change-Id: I4efb488eff6d1e72acfce5b172444c1cfe5942b3

gnu/packages/golang-xyz.scm

@@ -831,6 +831,32 @@ newlines until a non-newline.")
        "This library provides unit multipliers and functions for Go.")
       (license license:expat))))
 
+(define-public go-github-com-alsm-ioprogress
+  (package
+    (name "go-github-com-alsm-ioprogress")
+    (version "0.0.0-20170412085706-063c3725f436")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/alsm/ioprogress")
+             (commit (go-version->git-ref version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "10ym5qlq77nynmkxbk767f2hfwyxg2k7hrzph05hvgzv833dhivh"))))
+    (build-system go-build-system)
+    (arguments
+     (list
+      #:import-path "github.com/alsm/ioprogress"))
+    (home-page "https://github.com/alsm/ioprogress")
+    (synopsis "Textual progress bars in Go")
+    (description
+     "@code{ioprogress} is a Go library with implementations of
+@code{io.Reader} and @code{io.Writer} that draws progress bars.  The primary
+use case for these are for command-line applications but alternate progress
+bar writers can be supplied for alternate environments.")
+    (license license:expat)))
+
 (define-public go-github-com-andreasbriese-bbloom
   (package
     (name "go-github-com-andreasbriese-bbloom")