spikegadgets rec format can be read with neo or spikeextractors

Hi here,
I made a reader in pure python in neo and spikeextractors see:

https://github.com/NeuralEnsemble/python-neo/pull/954
https://github.com/SpikeInterface/spikeextractors/pull/592

not yet merge and finsh but can be usefull to be awre of.
