Implement change-email, email-verification, account-recovery, and welcome notifications

src/db/schemas/mysql/schema.rs

@@ -101,7 +101,12 @@ table! {
         uuid -> Varchar,
         created_at -> Datetime,
         updated_at -> Datetime,
+        verified_at -> Nullable<Datetime>,
+        last_verifying_at -> Nullable<Datetime>,
+        login_verify_count -> Integer,
         email -> Varchar,
+        email_new -> Nullable<Varchar>,
+        email_new_token -> Nullable<Varchar>,
         name -> Text,
         password_hash -> Blob,
         salt -> Blob,