Add Global Error Handler

[fsciuti]

Angular has a global error handling class called errorHandler that provides a hook for centralized exception handling inside your application.
We need to detect errors with a class inherited by errorHandler

[fathorMB]

I could build a class named GlobalErrorHandler that inherits from ErrorHandler and set it up in the providers' configuration to get it working. Just one thing: how do you picture the user interaction with errors? Toast notifications? Browser alert? Just in console for development purposes?

[fsciuti]

Hi @fathorMB, we should implement a simple toast or snack bar (without Material or similar).
Anyway, a simple console log might be right for now!