[Feature]: Add global "from" and "replyTo" in configurations files

[jlenon7]

🚀 Feature Proposal

Add a global from and replyTo properties in the configuration files. The SmtpDriver class should read the configuration file and get this default values. If from or replyTo method of SmtpDriver class are called, than it should subscribe the defaults.

Motivation

Make it easier to send emails without having to repeatedly add information.

Example

config/mail.js file:

{
  default: ...
  from: 'no-reply@athenna.io',
  replyTo: 'support@athenna.io, lenonsec7@gmail.com'
  mailers: [....,
}