Add 'alive' endpoint to Admin and Identity services (#1505)

* Add 'alive' endpoint to Admin and Identity services

* Move 'alive' endpoint for Admin to Home Controller

src/Admin/Controllers/HomeController.cs

@@ -29,6 +29,13 @@ namespace Bit.Admin.Controllers
                 CurrentVersion = Core.Utilities.CoreHelpers.GetVersion()
             });
         }
+        
+        [HttpGet("~/alive")]
+        [HttpGet("~/now")]
+        public DateTime Get()
+        {
+            return DateTime.UtcNow;
+        }
 
         public IActionResult Error()
         {

src/Identity/Controllers/MiscController.cs

@@ -0,0 +1,17 @@
+using System;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Bit.Identity.Controllers
+{
+    public class MiscController : Controller
+    {
+        public MiscController() { }
+
+        [HttpGet("~/alive")]
+        [HttpGet("~/now")]
+        public DateTime Get()
+        {
+            return DateTime.UtcNow;
+        }
+    }
+}