[SM-460] Isolate SecretsManager files (#2616)

Move SecretsManager files to directories called SecretsManager and add CodeOwners

src/Api/SecretsManager/Models/Request/AccessTokenCreateRequestModel.cs

@@ -0,0 +1,37 @@
+using System.ComponentModel.DataAnnotations;
+using Bit.Core.SecretsManager.Entities;
+using Bit.Core.Utilities;
+
+namespace Bit.Api.SecretsManager.Models.Request;
+
+public class AccessTokenCreateRequestModel
+{
+    [Required]
+    [EncryptedString]
+    [EncryptedStringLength(200)]
+    public string Name { get; set; }
+
+    [Required]
+    [EncryptedString]
+    [EncryptedStringLength(4000)]
+    public string EncryptedPayload { get; set; }
+
+    [Required]
+    [EncryptedString]
+    public string Key { get; set; }
+
+    public DateTime? ExpireAt { get; set; }
+
+    public ApiKey ToApiKey(Guid serviceAccountId)
+    {
+        return new ApiKey()
+        {
+            ServiceAccountId = serviceAccountId,
+            Name = Name,
+            Key = Key,
+            ExpireAt = ExpireAt,
+            Scope = "[\"api.secrets\"]",
+            EncryptedPayload = EncryptedPayload,
+        };
+    }
+}