New GameKit APIs for iOS/tvOS 17.2 and macOS 14.2.

* GKMatch.Properties
* GKMatch.PlayerProperties
* GKMatchedPlayers
* GKMatchmaker.FindMatchedPlayers
* GKMatchmaker.QueryQueueActivity
* GKMatchmakerViewControllerDelegate.GetMatchPropertiesForRecipient
* GKMatchRequest.QueueName
* GKMatchRequest.Properties
* GKMatchRequest.RecipientProperties
* GKAchievementDescription.RarityPercent

Added support for a subset of methods and properties of the following NS* data types.

* NSArray and NSMutableArray
* NSDictionary and NSMutableDictionary
* NSError
* NSException
* NSNull
* NSNumber
* NSObject
* NSString

Author: AdamSzApple

.gitignore

@@ -8,3 +8,4 @@ plug-ins/**/TestPlayers
 **/.vsconfig
 **/xcuserdata
 *.vsconfig
+**/.vscode/*

plug-ins/Apple.Core/Apple.Core_Unity/Assets/Apple.Core/CHANGELOG.md

@@ -1,6 +1,23 @@
 # CHANGELOG
 All notable changes to this project will be documented in this file.
 
+## [2.0.0] - 2023-11-09
+### Added
+- Add C# wrappers for `NSNull`, `NSNumber`, `NSObject`, `NSString`.
+- Add C# wrapper for `NSMutableDictionary<,>`. See below for further details.
+### Changed
+- BREAKING CHANGES: There are a number of breaking changes to `NSArray` and `NSDictionary` to make them behave more like standard C# collections.
+  - `NSArray<>` is now a generic class that implements `IReadOnlyList<>` and derives from `NSObject`.
+  - `NSMutableArray<>` is now a generic class that implements `IList<>` and derives from `NSArray<>`. The `Init` factory method has been removed. New instances can simply be created by using `new`.
+  - `NSDictionary<,>` is now a generic class that implements `IReadOnlyDictionary<,>` and derives from `NSObject`.
+  - `NSMutableDictionary<,>` is a new generic class that implements `IDictionary<,>` and derives from `NSDictionary<,>`
+  - Items added to these collections can be any of the following:
+    - Primitive `System` types: `Boolean`, `Byte`, `SByte`, `Int16`, `UInt16`, `Int32`, `UInt32`, `Int64`, `UInt64`, `Single`, and `Double`
+    - `System.String`
+    - `NSObject` and subclasses.
+  - Keys used with the dictionary collections can be any of the same types allowed for items except for `NSObject`. Any subclass of `NSObject` used as a key must implement the `NSCopying` protocol.
+- BREAKING CHANGE: `NSError` now derives from `NSObject` instead of `System.Exception`.
+
 ## [1.0.5] - 2023-11-28
 ### Fixed
 - Cleans up an issue with Unity 2022.1 and later in which Unity's Asset Database was unable to find frameworks or bundles.