chore: restructure the installers for organize the installers

examples/installers/infra/gitea.vsh

@@ -0,0 +1,8 @@
+#!/usr/bin/env -S v -n -w -gc none  -cc tcc -d use_openssl -enable-globals run
+
+import freeflowuniverse.herolib.installers.infra.gitea as gitea_installer
+
+mut gitea := gitea_installer.get()!
+gitea.install()!
+gitea.start()!
+gitea.destroy()!