gnu: Add emacs-company-emoji.

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From 6c23c5966a3c7ed01c784874e410d5fe3009bfc5 Mon Sep 17 00:00:00 2001
From: Evan Straw <evan.straw99@gmail.com>
Date: Sat, 22 Feb 2020 19:47:19 -0800
Subject: [PATCH] gnu: Add emacs-company-emoji.

* gnu/packages/emacs-xyz.scm (emacs-company-emoji): New variable.

gnu/packages/emacs-xyz.scm

@@ -59,6 +59,7 @@
 ;;; Copyright © 2019 David Wilson <david@daviwil.com>
 ;;; Copyright © 2020 Paul Garlick <pgarlick@tourbillion-technology.com>
 ;;; Copyright © 2020 Robert Smith <robertsmith@posteo.net>
+;;; Copyright © 2020 Evan Straw <evan.straw99@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21536,3 +21537,26 @@ (define-public emacs-persist
 one file per value.  This makes it easy to delete or remove unused
 variables.")
     (license license:gpl3+)))
+
+(define-public emacs-company-emoji
+  (package
+    (name "emacs-company-emoji")
+    (version "2.5.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/dunn/company-emoji/")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0r9zcbm3nb3zw5cwrkl098v5b49jbga5404bj7j55g6k4rwkjar2"))))
+    (build-system emacs-build-system)
+    (propagated-inputs
+     `(("emacs-company" ,emacs-company)))
+    (home-page "https://github.com/dunn/company-emoji/")
+    (synopsis "Company completion back-end for emoji")
+    (description
+     "This library is a Company back-end providing auto-completion for
+emoji.")
+    (license license:gpl3+)))