Time-Based Release Access License Entitlement

We want to be able to sell time-limited release access license entitlements, which gives access to using the product forever, but only with versions released within a certain time after purchase.

Typically, you say you get lifetime access with 1 years worth of free updates. Updates after this point needs a new license (or upgraded, but we need to build support for this).

This is an alternative to the version-based release access entitlement.