Allow NEAT network to utilise recurrence for processing of arbitrary sequences of inputs

[meowcakes]

Hello,

At the moment, it seems that the implementation of the NEAT network only allows a fixed size input to be computed, and the network is reset afterwards. NEAT networks can function as recurrence networks, so it would be nice if I could feed a stream of inputs into the NEAT network and utilise the internal state that can be established by recurrent neurons.

Thank you