Add remaining project files

Controllers/Auth/EacController.cs

@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace DeluxeBackend.Controllers.Auth
+{
+    [Route("Auth/eac")]
+    [ApiController]
+    public class EacController : ControllerBase
+    {
+        [HttpGet("challenge")]
+        public async Task<IActionResult> C_hallenge()
+        {
+            return Ok("\"AQAAAHsg7mW5FQEE9HVl9EKMWXrqDzQxUCdgV/IPuQfbRgTx+cGnQqhhAgv1RvpihEC77gQ29JdoGFn2806Q+QPEj7nYg9C8pynbaiSVO8rKLJPvROsHuSXVJpQMv3TD8KyK3Y+n5bb86vAb5kRdZGD//uC8HY+D9jJLlEfTUlU=\"");
+        }
+    }
+}