fix: update resource name handling and identifier parsing for emails/login_name for Users

[ike-lacey]

SSO/Federated Logins use login_name as lookup for validation of authentication:

https://docs.snowflake.com/en/user-guide/admin-security-fed-auth-configure-idp#okta-setup

Today Titan double quotes login name on create statement.

urn::XXXXXXX:user/IKETESTLACEY {
  + name                    = "IKETESTLACEY"
  + owner                   = "USERADMIN"
  + password                = None
  + login_name              = ""[email protected]""
  + display_name            = "IKETESTLACEY"
  + first_name              = None
  + middle_name             = None
  + last_name               = None
  + email                   = None
  + must_change_password    = False
  + disabled                = False
  + days_to_expiry          = None
  + mins_to_unlock          = None
  + default_warehouse       = None
  + default_namespace       = None
  + default_role            = None
  + default_secondary_roles = None
  + mins_to_bypass_mfa      = None
  + rsa_public_key          = None
  + rsa_public_key_2        = None
  + comment                 = None
  + network_policy          = None
  + type                    = "NULL"
}

This change would reflect the changes below:

urn::XXXXXXX:user/IKETESTLACEY {
  + name                    = "IKETESTLACEY"
  + owner                   = "USERADMIN"
  + password                = None
  + login_name              = "[email protected]"
  + display_name            = "IKETESTLACEY"
  + first_name              = None
  + middle_name             = None
  + last_name               = None
  + email                   = None
  + must_change_password    = False
  + disabled                = False
  + days_to_expiry          = None
  + mins_to_unlock          = None
  + default_warehouse       = None
  + default_namespace       = None
  + default_role            = None
  + default_secondary_roles = None
  + mins_to_bypass_mfa      = None
  + rsa_public_key          = None
  + rsa_public_key_2        = None
  + comment                 = None
  + network_policy          = None
  + type                    = "NULL"
}

[ike-lacey]

Hey @teej anything I can do to help move this along if possible? We're hype to move over to Titan and contribute.