Compares the 32-byte rawAddress arrays directly instead of converting through hex strings and BigNumber. Removes the toBigNumber() method and bnAddress cache field, which were only used by compare().                        
                                                                      
  - Warm cache: ~75-100x faster (2,500-3,500 ns/op → 35 ns/op)                                                                                                                                                                   
  - Cold cache: ~117x faster (9,000 ns/op → 77 ns/op)                                                                                                                                                                            
  - Sort of 1,000 addresses: ~37x faster (26ms → 0.7ms)