Add support for map affix "Buffs on players expire #% faster"

[aussiedrongo]

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• I've checked for duplicate open and closed issues by using the search function of the issue tracker

What platform are you running Path of Building on?

Windows

Is your feature request related to a problem?

No option to calculate buff duration with this map affix.

Describe the solution you'd like

Implement option in drop down map mod section in Configuration for the map affix.

Describe alternatives you've considered

No response

Additional context

No response