Initialize repository

Added basic info to get in game for like...August 2016 ;-;
It's not much but it's a start

RecRoomArchive.Models/API/PlatformLogin/Requests/BaseLoginRequest.cs

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+using RecRoomArchive.Models.API.Platform;
+
+namespace RecRoomArchive.Models.API.PlatformLogin.Requests
+{
+    public class BaseLoginRequest
+    {
+        public required PlatformType Platform { get; set; }
+        public required string PlatformId { get; set; }
+        public string? Name { get; set; }
+        public required long ClientTimestamp { get; set; }
+        public required string DeviceId { get; set; }
+        public required long BuildTimestamp { get; set; }
+        public required string AuthParams { get; set; }
+        public required string Verify { get; set; }
+    }
+}

RecRoomArchive.Models/API/PlatformLogin/Responses/BaseLoginResponse.cs

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+using System.Text.Json.Serialization;
+
+namespace RecRoomArchive.Models.API.PlatformLogin.Responses
+{
+    public class BaseLoginResponse
+    {
+        [JsonPropertyName(name: "Token")]
+        public string Token { get; set; } = string.Empty;
+
+        [JsonPropertyName(name: "PlayerId")]
+        public ulong PlayerId { get; set; }
+    }
+}