Use auxiliary input in CNN-RNN model

[aribrill]

Process auxiliary input such as the telescope position coordinates or indicator of telescope type and use it in the CNN RNN model. It may be beneficial to include an intermediate fully connected layer to obtain a representation of the auxiliary input instead of the raw values. The auxiliary input could be included as an additional filter at the initial or later layers of the CNN and/or appended to the CNN output to feed into the LSTM.