VP clustering emulator with Retina like method
Added an emulator of a RETINA like architecture to make cluster. The RETINA like architecture run on FPGA, the emulator reproduce the output. The emulator can be enabled replacing the std VP clustering with Pr/PrVPRetina/VPRetinaClustering algorithm. The purpose of the emulator is only to test tracking performances with an alternative clustering and not to implement a faster clustering.
Edited by Riccardo Cenci