NOTE: `NN.print()`'s floating point precision, is inucurate at the last decimal digit.

This means that if you copy-paste the printed-weights from the serial output, into another neural-network, there's going to be some slight noise to the output _(when you run it)_. This is a result of `Serial.print(weights[i][j], DFLOAT_LEN);` where `DFLOAT_LEN` is `7` but the `print`-function rounds it in a weirdly way.