Reads signal data from ".liio" file using buffered streaming.
The fixed sample time of the .liio file is also the blocks sample time. Width and data type of the output signal of the block are as well detrermined by the .liio file.
Possible signal types are floating types double and single (in C-terms: float) and the integer data types uint/int of 8, 16, 32, and 64 bits. The signal size can be scalar or a column vector.