Add docker-compose to install_tool

bin/install_tool

@@ -387,6 +387,14 @@ EOF
     go get -u filippo.io/age/cmd/age
     go get -u filippo.io/age/cmd/age-keygen
     ;;
+  docker-compose)
+    mkdir -p ${DESTDIR}
+    curl -L \
+      "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" \
+            -o "${DESTDIR}/docker-compose"
+    chmod +x "${DESTDIR}/docker-compose"
+    add_bin_symlink docker-compose
+    ;;
   *)
     echo "Unknown tool: ${TOOL}" >/dev/stderr
     list_tools