add Player model

Package.swift

@@ -17,6 +17,8 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.65.0"),
         // JWTs
         .package(url: "https://github.com/vapor/jwt.git", from: "5.0.0"),
+        // MsgPack
+        .package(url: "https://github.com/nnabeyang/swift-msgpack.git", from: "0.7.0")
     ],
     targets: [
         .executableTarget(
@@ -28,6 +30,7 @@ let package = Package(
                 .product(name: "NIOCore", package: "swift-nio"),
                 .product(name: "NIOPosix", package: "swift-nio"),
                 .product(name: "JWT", package: "jwt"),
+                .product(name: "SwiftMsgpack", package: "swift-msgpack"),
             ],
             swiftSettings: swiftSettings
         ),