Added new class

Added template endpoint to upload contact files. These are just plain text files of phone numbers separated by a new line

Controllers/ContactQueueCreationController.cs

@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace TextSender_API.Controllers;
+
+[ApiController]
+[Route("api/v1/contact/queue")]
+public class ContactQueueCreationController : ControllerBase
+{
+    #region Fields
+    private readonly ILogger<ContactQueueCreationController> _logger;
+    #endregion
+
+
+    #region Constructors        
+
+    public ContactQueueCreationController(ILogger<ContactQueueCreationController> logger)
+    {
+        this._logger = logger;
+    }
+    #endregion
+
+    #region Methods
+    [HttpPost("upload"), DisableRequestSizeLimit]
+    public IActionResult Upload([FromForm(Name = "file")] List<IFormFile> contactFile,
+        [FromForm(Name = "user_id")] string userID)
+    {
+        return Ok();
+    }
+    #endregion
+}