Adds expiration support to the underlying store
`store`, `load` and `key?` support the `:expires` option to set/update the expiration time.
@api public
@param [Moneta store] adapter The underlying store @param [Hash] options @option options [String] :expires Default expiration time
(see Proxy#store)
(see Proxy#delete)
(see Proxy#key?)
(see Proxy#load)
[Validate]