Update package metadata and use version from deno.json in CLI

deno.json

···
 {
+  "name": "@tsiry/openindiana-up",
+  "version": "0.1.0",
+  "exports": "./main.ts",
+  "license": "MPL-2.0",
   "tasks": {
     "dev": "deno run --watch main.ts"
   },

main.ts

···
 #!/usr/bin/env -S deno run --allow-run --allow-read --allow-env
 
 import { Command } from "@cliffy/command";
+import pkg from "./deno.json" with { type: "json" };
 import { createBridgeNetworkIfNeeded } from "./src/network.ts";
 import inspect from "./src/subcommands/inspect.ts";
 import ps from "./src/subcommands/ps.ts";
···
 if (import.meta.main) {
   await new Command()
     .name("openindiana-up")
-    .version("0.1.0")
+    .version(pkg.version)
     .description("Start a OpenIndiana virtual machine using QEMU")
     .arguments(
       "[path-or-url-to-iso-or-version:string]",