Custom cookie duration based on consents

[gtnsimon]

To offer more control to developers on how cookie duration is managed based on user consent, is it possible to allow cookieExpiresAfterDays to be a function ?

This function could take 2 arguments:

• consents:

  orejime/src/consent-manager.js

  Line 6 in 61612c7

  this.consents = this.defaultConsents; // the consent states of the configured apps

• config:

  orejime/src/consent-manager.js

  Line 5 in 61612c7

  this.config = config; // the configuration

Motivations

I'm working with orejime on general public websites which requires this kind of behavior especially for users who click decline on Notice or decline all on Modal. It is a pure business needs but it gives more control than a static value.

[felixgirault]

This seems like a legit use-case, thank you for the PR.
I just made some small requests for adjustments, let me know what you think.