Change how authentication gets passed

I was making a launcher of my own, and I found it very hard to juggle with having the auth in the options since I needed to set the client events before I actaully had the users login. This will fix the issue i was running into!

README.md

@@ -18,7 +18,6 @@ https://discord.gg/8uYVbXP
 const { Client, Authenticator } = require('minecraft-launcher-core');
 
 let opts = {
-    authorization: async () => { return await Authenticator.getAuth(username, password) },
     clientPackage: null,
     root: "./minecraft",
     os: "windows",
@@ -33,7 +32,7 @@ let opts = {
 }
 
 const launcher = new Client(opts);
-launcher.launch();
+launcher.launch(Authenticator.getAuth(username, password));
 
 launcher.on('debug', (e) => console.log(e));
 launcher.on('data', (e) => console.log(e));
@@ -45,7 +44,6 @@ launcher.on('error', (e) => console.log(e));
 
 | Parameter                | Type     | Description                                                                               | Required |
 |--------------------------|----------|-------------------------------------------------------------------------------------------|----------|
-| `options.authorization`  | Object   | The result from `getAuth` function, allows the client to login in online or offline mode. | True     |
 | `options.clientPackage`  | String   | Path to the client package zip file.                                                      | False    |
 | `options.root`           | String   | Path where you want the launcher to work in.  like `C:/Users/user/AppData/Roaming/.mc`,   | True     |
 | `options.os`             | String   | windows, osx or linux,                                                                    | True     |
@@ -73,6 +71,11 @@ if you don't provide downloads url downloads like Forge and Fabric. Still need t
 | `close`  | Promise | Closes current client                                                                   |
 | `restart`| Promise | Restarts by closing the current client then relaunching it with the specified `options` |
 
+##### launch
+| Parameter | Type   | Description                                                  | Required |
+|-----------|--------|--------------------------------------------------------------|----------|
+| `authentication` | Object | Result from `getAuth` or the getAuth function itself. | True     |
+
 #### Authenticator Functions 
 
 ##### getAuth

components/launcher.js

@@ -14,7 +14,15 @@ class MCLCore extends EventEmitter {
         this.pid = null;
     }
 
-    async launch() {
+    async launch(authorization) {
+        if(!authorization) throw Error('No authorization to launch the client with!');
+
+        if({}.toString.call(authorization) === "[object Promise]") {
+            this.options.authorization = await authorization;
+        } else {
+            this.options.authorization = authorization
+        }
+
         this.options.root = path.resolve(this.options.root);
         if(!fs.existsSync(this.options.root)) {
             this.emit('debug', '[MCLC]: Attempting to create root folder');

package.json

@@ -1,6 +1,6 @@
 {
   "name": "minecraft-launcher-core",
-  "version": "3.0.2",
+  "version": "3.1.0",
   "description": "Module that downloads Minecraft assets and runs Minecraft. Also Supports Forge",
   "main": "index.js",
   "dependencies": {