Optional delay / consolidating writes

[DTTerastar]

Is your feature request related to a problem? Please describe.
The flash memory in the ESP32 has a limited lifetime, if we write to it in a frequent loop we could kill it in less than a year.

Describe the solution you'd like
It would be nice if I could write a value to spiffs but "queue it" up for a later time. If the same value is "written" multiple times then the queue would just write the latest value. You should be able to set the max delay via a define or something similar.

Describe alternatives you've considered
n/a