New method to reset users identity in the browser

This new method to reset the users’ identity in the browser. The method needs to be inserted in the SDK:

MeiroEvents.resetIdentity()

It will delete all the current identifiers about the user that are stored in the browser. After that, It will generate new ones.

The identity can be reset upon logout or after other defined action is being taken.

This method can be useful for clients that have a shared machine in a store for multiple users.

Using this method there will not be many entities tied to one meiro_user_id that contains a lot of different customer emails.