adding dify installer

examples/installers/infra/dify.vsh

@@ -0,0 +1,9 @@
+#!/usr/bin/env -S v -n -w -gc none  -cc tcc -d use_openssl -enable-globals run
+
+import freeflowuniverse.herolib.installers.infra.dify as dify_installer
+
+mut dify := dify_installer.get()!
+
+dify.install()!
+dify.start()!
+dify.destroy()!