feat(scripts): Add script to create a @discordjs package (#8711)

packages/scripts/src/packageScript.mjs

@@ -0,0 +1,14 @@
+import { program } from 'commander';
+import { createPackage } from '../dist/index.mjs';
+
+program
+	.description('A script for creating discord.js packages.')
+	.argument('<name>', 'The name of the new package.')
+	.argument('[description]', 'The description of the new package.');
+program.parse();
+
+const [packageName, description] = program.args;
+
+console.log(`Creating package @discordjs/${packageName}...`);
+await createPackage(packageName, description);
+console.log('Done!');