Initial Work on Lifecycle API

config/sidebar.paper.ts

@@ -141,6 +141,7 @@ const paper: SidebarsConfig = {
             "dev/api/scheduler",
             "dev/api/plugin-messaging",
             "dev/api/plugin-configs",
+            "dev/api/lifecycle",
             "dev/api/folia-support",
             "dev/api/roadmap",
           ],

docs/paper/dev/api/lifecycle.md

@@ -0,0 +1,31 @@
+---
+slug: /dev/lifecycle
+description: A guide to Paper's Lifecycle API
+---
+
+# Lifecycle API
+
+The lifecycle API can be used for lifecycle-related registration, such as commands, the Registry Modification API and other similar resources.
+
+## LifecycleEventManager
+
+The `LifecycleEventManager` is tied to either a `Plugin` instance or a `BootstrapContext` depending on where you access
+it from. For example in your plugin's main class:
+
+```java title="TestPlugin.java"
+@Override
+public void onEnable() {
+  LifecycleEventManager<Plugin> lifecycleManager = this.getLifecycleManager();
+}
+```
+
+Or, with a bootstrapper:
+
+```java title="TestPluginBootstrap.java"
+@Override
+public void bootstrap(@NotNull BootstrapContext context) {
+  final LifecycleEventManager<BootstrapContext> lifecycleManager = context.getLifecycleManager();
+}
+```
+
+## LifecycleEvents & RegistryEvents