Release New unitypackage (#795)

* Add a readme for unitypackages

* Move some old unitypackages to a legacy folder.

* Update package readme formatting.

* Add new unitypackage.

* Remove outdated unitypackage link in the readme.

Author: timbotimbo

README.md

@@ -73,9 +73,8 @@ the platform name (Android or iOS). You can click on its icon to expand it.
 
 - An existing Unity project (if there is none, you can [create a new one](https://learn.unity.com/tutorial/create-your-first-unity-project)).
 
-- A [`FlutterUnityPackage.unitypackage`](https://raw.githubusercontent.com/juicycleff/flutter-unity-view-widget/master/unitypackages/fuw-2022.1.1.unitypackage) 
-  file (you can access the Unity packages in the [*unitypackages*](https://github.com/juicycleff/flutter-unity-view-widget/tree/master/unitypackages) folder too)
-  Remeber to always check the match unitypackage for your project.
+- A `fuw-XXXX.unitypackage` file, found in the [*unitypackages*](https://github.com/juicycleff/flutter-unity-view-widget/tree/master/unitypackages) folder.
+Try to use the most recent unitypackage available.
 
 #### NDK
 
@@ -99,9 +98,9 @@ That's it! You don't need to tell your Android App in your `app/build.gradle` th
 
 > The expected path is *unity/__project-name__/...*
 
-2. Copy the *FlutterUnityPackage.unitypackage* file into the Unity project folder.
+2. Copy the *fuw-XXXX.unitypackage* file into the Unity project folder.
 
-> The expected path is *unity/__project-name__/FlutterUnityPackage.unitypackage*
+> The expected path is *unity/__project-name__/fuw-XXXX.unitypackage*
 
 3. Using Unity, open the Unity project, go to **File > Build Settings > Player Settings**
     and change the following under the **Configuration** section:
@@ -121,7 +120,7 @@ That's it! You don't need to tell your Android App in your `app/build.gradle` th
 > Be sure you have at least one scene added to your build.
 
 4. Go to **Assets > Import Package > Custom Package** and select the 
-    *FlutterUnityPackage.unitypackage* file. Click on **Import**.
+    *fuw-XXXX.unitypackage* file. Click on **Import**.
 
 5. After importing, click on **Flutter** and select the **Export Android Debug** or **Export Android Release** option (will export to *android/unityLibrary*) or the **Export iOS Debug** or **Export iOS Release**
 option (will export to *ios/UnityLibrary*).

example/unity/DemoApp/Assets/FlutterUnityIntegration/README.txt

@@ -1,3 +1,5 @@
 DOCUMENTATION
 
-Visit https://github.com/juicycleff/flutter-unity-view-widget
+Visit https://github.com/juicycleff/flutter-unity-view-widget
+
+unitypackage version: fuw-2022.2.0

unitypackages/README.md

@@ -0,0 +1,65 @@
+# Unitypackages
+Documentation of the unitypackage for `flutter_unity_widget`.
+
+These packages are generated from the `FlutterUnityIntegration`folder in the example project.
+Using the files from the example project ensures you have the latest version.
+
+
+### Which one do I pick?
+Try the newest one first.
+
+Package versions do not indicate supported unity versions.
+For example `fuw-2022.1.7f1.unitypackage` will work in Unity 2021 and even Unity 2019.
+
+If you really can't get it to work try to match version numbers.
+e.g if you use an older plugin version in the 4.x range, you might have to try unitypackages with 4.x versions.
+
+
+### NewtonSoft errors
+You might run into one of the following errors:
+
+- `The type or namespace name 'Newtonsoft' could not be found`
+ You need to add or enable the dll file.
+- `Multiple precompiled assemblies`.
+You need to remove or disable the dll file.
+
+For Android, iOS and Web this file shoud be
+`Assets\FlutterUnityIntegration\JsonDotNet\Assemblies\AOT\Newtonsoft.Json.dll.txt`
+
+Using a wrong extension like `.dll.txt` will disable it.
+
+# CHANGELOG
+Changes for `2022.1.7f1` and earlier were collected retroactively and might not be complete.
+
+## 2022.2.0
+>fuw-2022.2.0.unitypackage
+* Restore newtonsoft.json.dll import. 
+* Improve file appending during iOS export.
+* Disable bitcode for Xcode 14
+* (Android) Fix proguard linebreak bug
+* Fix a debugger crash in Unity 2022
+* Demo: Fix float parsing for localizations not using a dot as separator.
+
+## 2022.1.7f1
+>fuw-2022.1.7f1.unitypackage
+* Add separate Debug and Release exports options.
+
+## 2022.1.1-v2
+>fuw-2022.1.1-v2.unitypackage
+* Add missing using statements in `NativeAPI.cs`.
+* Add success logs at the end of an export.
+* Add Android proguard rule `-keep class com.unity3d.plugin.* { *; }";`
+* Improve web exports.
+
+## 2022.1.1
+>fuw-2022.1.1.unitypackage
+* Rename newtonsoft.json `.dll` to `.dll.txt` to avoid assembly errors.
+
+## 2022.1.0
+>fuw-2022.1.0.unitypackage
+* iOS export fixes.
+* WIP webGL export
+
+## v4.1
+ >FlutterUnityIntegration-v4.1.0.unitypackage
+* Enable bitcode for iOS.