Adding support for array values

[levani]

I had an use case where I wanted to store array as a value and later push/pop some items.

I think it would make sense to add methods like push, pop, unshift, etc, to work with array values directly from cache object, instead of getting the value, manipulating and then putting it back in cache.

I would like to discuss this in more details and send a PR if you think this will be useful in general.

[CodeLuca]

^

[IvanAdmaers]

Good idea. I’ll think about the possibility of implementing this in my similar package memory-cache-pro