gnu: go-github-com-couchbase-gomemcached: Move to golang-xyz.

* gnu/packages/databases.scm (go-github-com-couchbase-gomemcached): Move
from here ...
* gnu/packages/golang-xyz.scm: ... to here.

Change-Id: I62b77bffa9f6e673ebcedc58599c7e2a0e827f4c

gnu/packages/golang-xyz.scm

@@ -3425,6 +3425,35 @@ submodules:
 @end itemize")
     (license license:asl2.0)))
 
+(define-public go-github-com-couchbase-gomemcached
+  (package
+    (name "go-github-com-couchbase-gomemcached")
+    (version "0.3.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/couchbase/gomemcached")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "132zjbr7d586gb1wqlnhg3vgyshq629z1wsskrpbmyypjfkq620c"))))
+    (build-system go-build-system)
+    (arguments
+     (list
+      #:import-path "github.com/couchbase/gomemcached"
+      #:test-flags #~(list "-skip" "TestEncodingResponse")
+      #:test-subdirs #~(list ".")))
+    (native-inputs
+     (list go-github-com-stretchr-testify))
+    (propagated-inputs
+     (list go-github-com-pkg-errors))
+    (home-page "https://github.com/couchbase/gomemcached")
+    (synopsis "Memcached binary protocol toolkit for go")
+    (description
+     "This package provides memcache client and server functionality.")
+    (license license:expat)))
+
 (define-public go-github-com-creack-pty
   (package
     (name "go-github-com-creack-pty")