Makes a copy of the masterbias and index file in the calibration library _FILE_LIBRARY_BIAS_
This primitive is suitable for optical imaging instruments.
Processing only occurs for bias frames, and when the steering header MAKE_BIAS is true.
"
bias_instrument_UT
night_binXbinxYbin"
where instrument
is the LCOGT instrument identifier and
Xbin,
Ybin
are the binning factors in X and Y.