chore: restructure the installers for organize the installers

examples/installers/db/zerodb.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.db.zerodb as zerodb_installer
+
+mut db := zerodb_installer.get()!
+
+db.install()!
+db.start()!
+db.destroy()!