WIP: CLI running of plugs

cli/plug_test.ts

@@ -0,0 +1,7 @@
+import { index } from "$sb/silverbullet-syscall/mod.ts";
+
+export async function run() {
+  console.log("Hello from plug_test.ts");
+  console.log(await index.queryPrefix(`tag:`));
+  return "Hello";
+}