v2.2.1

Added support to Email/Password registration and updating email
-> Added smtp_server, smtp_port, smtp_email, smtp_passwd in config for email credentials
-> Added email_template.register/update_email/reset_password as configurable email templates

-> Register with POST /auth/register
-> After register, confirm email with POST /auth/email with secret
-> To resend register confirmation email, use POST /user/resendConfirmation

-> To update email, use PATCH /user/email
-> To reset password, use POST /auth/reset
-> Use POST /auth/email with secret and new password to reset password

-> Secret starting with rg refers to register, ue update email, rp reset password, which may be useful for frontend