Support for ttl for time based evictions

[eshaanmangal-tf]

Hello, I am using foyer v0.17.4
So I have one doubt, can we wrap eviction policy somehow within foyer config in which we can do time based evictions ? In our case it might happen that some keys just sit idle in main queue which I would like to flush as a function of time.

Currently I am using S3Fifo as my eviction policy with the following config

small_queue_capacity_ratio: 0.1
ghost_queue_capacity_ratio: 0.9
small_to_main_freq_threshold: 1

[eshaanmangal-tf]

Tagging @MrCroxx (in case this discussion missed visibility)