Added room functionality

Controllers/RoomController.cs

@@ -0,0 +1,54 @@
+using MauMau_Server.Websockets;
+using Microsoft.AspNetCore.Mvc;
+
+namespace MauMau_Server.Controllers;
+
+[ApiController]
+[Route("[controller]")]
+public class RoomController : ControllerBase
+{
+    private readonly ILogger<RoomController> _logger;
+    private readonly IRoomManager _roomManager;
+
+    public RoomController(ILogger<RoomController> logger, IRoomManager roomManager)
+    {
+        _logger = logger;
+        _roomManager = roomManager;
+    }
+
+    [HttpGet]
+    public IActionResult GetAll()
+    {
+        var rooms = _roomManager.GetAllRooms();
+        return Ok(rooms);
+    }
+
+    [HttpGet("{id}")]
+    public async Task ConnectToRoom(string id)
+    {
+        if (HttpContext.WebSockets.IsWebSocketRequest)
+        {
+            if (_roomManager.RoomExists(id))
+            {
+                using var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
+                var room = _roomManager.GetRoom(id);
+                await room.InstantiateConnection(webSocket);
+            }
+            else
+            {
+                HttpContext.Response.StatusCode = 404;
+            }
+        }
+        else
+        {
+            HttpContext.Response.StatusCode = 400;
+        }
+    }
+
+    [HttpPost]
+    public IActionResult Post()
+    {
+        var id = _roomManager.CreateRoom();
+        return Ok(id);
+    }
+}