Add typed hook system for plugins

Replace invokeHook and the per plugin on* methods with AsyncHook
collections on the controller, host, instance, clusterioctl and web
control objects. Plugin entrypoints export a default function that
receives a load context and attaches handlers to the hooks it needs.
Class exports still load through fromContext with a deprecation
warning. The create templates and docs use the entrypoint function.

This is clusterio/clusterio#921 recreated on top of master after the
ESM migration and the PluginDeclaration permissions change.

Closes #730

Co-Authored-By: Cooldude2606 <25043174+Cooldude2606@users.noreply.github.com>
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

test/file/test_plugin/instance.js

@@ -1,7 +1,8 @@
-import { BaseInstancePlugin } from "@clusterio/host";
+export default async function(context) {
+	const { instance, plugin, logger } = context;
+	logger.info("test_plugin instance loaded");
 
-export class InstancePlugin extends BaseInstancePlugin {
-	async init() {
-		this.logger.info("test_plugin instance loaded");
-	}
+	instance.hooks.start.attach(plugin.name, async () => {
+		logger.info("test_plugin instance started");
+	});
 }