timeouts added for smtp connection with default 5 seconds

Current Situation

If the connection to the smtp server fails then this thread is blocked until a default system timeout is reached which can take a long time. The timeouts can be configured in the ./config/factory.ini, section [smtp] with the entries

• mail.smtp.connectiontimeout
• mail.smtp.timeout

Desired Behavior

• These above timeouts are pre-configured with 5 seconds by the JobScheduler (full) installer.

  [smtp]
  mail.smtp.connectiontimeout = 5000
  mail.smtp.timeout           = 5000
  

• The JobScheduler update installer doesn't add these entries