Added script to install the X backend automatically

scripts/install-backends.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+pluginInstallPath="$HOME/.local/lib/nasin/plugins"
+
+mkdir -p build
+mkdir -p "$pluginInstallPath"
+
+install() {
+	go build -buildmode=plugin -o "build/$1.so" "./plugins/$1" && \
+	cp build/x.so $pluginInstallPath
+}
+
+echo "... installing X backend"
+install x
+echo ".// done"