Add RESP3 support ( --resp parameter )

[ofekshenawa]

• Fixes Add resp3 support to the benchmark tool #18 by adding --resp argument to tool
• Bumps radix v3 to v4 ( required for RESP3 )

[filipecosta90]

Nice work @ofekshenawa. approving.
FYI did a quick smoke test to validate the tool is working as expected WRT protocol version:

Used command:

 ./redis-benchmark-go -c 5 -p 6379 -r 1000 -n 100000  --resp 3 --rps 10000  hset __key__ f1 __data__ 
IPs [127.0.0.1]
Total clients: 5. Commands per client: 20000 Total commands: 100000
Using random seed: 12345
Using connection string 127.0.0.1:6379 for client 1
Using connection string 127.0.0.1:6379 for client 2
Using connection string 127.0.0.1:6379 for client 3
Using connection string 127.0.0.1:6379 for client 4
Using connection string 127.0.0.1:6379 for client 5
                 Test time                    Total Commands              Total Errors                      Command Rate           p50 lat. (msec)
                       11s [100.0%]                    100000                         0 [0.0%]                   4654.43                      0.08	
#################################################
Total Duration 11.001 Seconds
Total Errors 0
Throughput summary: 9090 requests per second
Latency summary (msec):
          avg       p50       p95       p99
        0.089     0.083     0.169     0.255

client list output ( notice resp version )

$ redis-cli client list
id=105 addr=127.0.0.1:42840 laddr=127.0.0.1:6379 fd=8 name= age=5 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=20474 argv-mem=0 multi-mem=0 rbs=1024 rbp=4 obl=0 oll=0 omem=0 tot-mem=22272 events=r cmd=hset user=default redir=-1 resp=3
id=106 addr=127.0.0.1:42848 laddr=127.0.0.1:6379 fd=9 name= age=4 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=20474 argv-mem=0 multi-mem=0 rbs=1024 rbp=4 obl=0 oll=0 omem=0 tot-mem=22272 events=r cmd=hset user=default redir=-1 resp=3
id=107 addr=127.0.0.1:42850 laddr=127.0.0.1:6379 fd=10 name= age=4 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=20474 argv-mem=0 multi-mem=0 rbs=1024 rbp=4 obl=0 oll=0 omem=0 tot-mem=22272 events=r cmd=hset user=default redir=-1 resp=3
id=108 addr=127.0.0.1:42866 laddr=127.0.0.1:6379 fd=11 name= age=4 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=20474 argv-mem=0 multi-mem=0 rbs=1024 rbp=4 obl=0 oll=0 omem=0 tot-mem=22272 events=r cmd=hset user=default redir=-1 resp=3
id=109 addr=127.0.0.1:42882 laddr=127.0.0.1:6379 fd=12 name= age=4 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=0 qbuf-free=20474 argv-mem=0 multi-mem=0 rbs=1024 rbp=4 obl=0 oll=0 omem=0 tot-mem=22272 events=r cmd=hset user=default redir=-1 resp=3
id=110 addr=127.0.0.1:37482 laddr=127.0.0.1:6379 fd=13 name= age=0 idle=0 flags=N db=0 sub=0 psub=0 ssub=0 multi=-1 qbuf=26 qbuf-free=20448 argv-mem=10 multi-mem=0 rbs=16384 rbp=16384 obl=0 oll=0 omem=0 tot-mem=37658 events=r cmd=client|list user=default redir=-1 resp=2