chore: restructure the installers for organize the installers

examples/installers/threefold/griddriver.vsh

@@ -0,0 +1,7 @@
+#!/usr/bin/env -S v -n -w -gc none  -cc tcc -d use_openssl -enable-globals run
+
+import freeflowuniverse.herolib.installers.threefold.griddriver
+
+mut griddriver_installer := griddriver.get()!
+griddriver_installer.install()!
+// griddriver_installer.destroy()!