Initialize repository

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

RecRoomArchive/Controllers/API/Players/V2/PlayersController.cs

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+using Microsoft.AspNetCore.Mvc;
+using RecRoomArchive.Models.API.Players;
+using RecRoomArchive.Models.Common;
+using RecRoomArchive.Services;
+using System.Text.Json;
+
+namespace RecRoomArchive.Controllers.API.Players.V2
+{
+    /// <summary>
+    /// Used to modify accounts / profiles in 2017-2019 although gets phased out as time goes on...
+    /// </summary>
+    [Route(template: "api/[controller]/v2")]
+    [ApiController]
+    public class PlayersController(FileService fileService) : ControllerBase
+    {
+        /// <summary>
+        /// Sets the players displayName
+        /// </summary>
+        /// <param name="name">The displayName the player is requesting</param>
+        /// <returns>OkResponse</returns>
+        [HttpPost(template: "displayName")]
+        public async Task<ActionResult<OkResponse>> SetDisplayName([FromForm(Name = "Name")] string name)
+        {
+            var profileData = fileService.GetData("profile.json");
+            if (profileData == null)
+                return BadRequest("Profile is not populated");
+
+            var profile = JsonSerializer.Deserialize<BaseProfile>(profileData)!;
+
+            profile.DisplayName = name;
+
+            fileService.SetData("profile.json", JsonSerializer.Serialize(profile));
+
+            return Ok(OkResponse.Ok());
+        }
+    }
+}