Provide support for setting cookieLifetime equivalent using Alloy

Currently, there is no function within the Alloy framework to support setting cookie expiration in the same manner as is supported using s.cookieLifetime in AppMeasurement.

Without this functionality in Alloy, we cannot manually set/control the cookie expiration using this solution.

The issue names no file, test, or entry point; start by locating Alloy's cookie configuration and comparing it with AppMeasurement's s.cookieLifetime behavior. Done means Alloy supports manually controlling cookie expiration with equivalent behavior, covered by relevant tests.

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