Implement a selection combining functionality into the cpp block diversity_combining_cc.
The CSI is transmitted over stream tags. With each new CSI, the combiner should update the selected input stream.
Block: sync
Input: complex vectors
Output: complex vectors
Args: number of inputs, vector length, combining mode
Implement a selection combining functionality into the cpp block diversity_combining_cc. The CSI is transmitted over stream tags. With each new CSI, the combiner should update the selected input stream.