contrib: add fzf with sixel images example

closes #84

contrib/cliphist-fzf-sixel

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+case "$1" in
+preview)
+    row="$2"
+    if echo "$row" | grep -vqP '^\d+\t\[\[ binary data .* \]\]'; then
+        echo "$row" | cliphist decode
+    else
+        echo "$row" | cliphist decode | chafa -f sixel -s "${FZF_PREVIEW_COLUMNS}x${FZF_PREVIEW_LINES}"
+    fi
+    ;;
+
+*)
+    id="$(cliphist list | dmenu clipboard 2 "$(realpath "$0") preview {}")"
+    test -z "$id" && exit
+
+    cliphist decode <<<"$id" | wl-copy
+    ;;
+
+esac