added update_quietly method on Model

[JarriqTheTechie]

This method calls the update method on a model without firing the updated & updating observer events. Updated/Updating are toggled back on once update_quietly has been ran.

Instead of calling:

User().update(...)

you can use this:

User.update_quietly(...)

[JarriqTheTechie]

@josephmancuso / @girardinsamuel please review.

[JarriqTheTechie]

Hi @josephmancuso, I'll make the changes this weekend. Been having a boxing match with COVID.

[josephmancuso]

of course no worries just doing some cleaning up