Refs: #25436

Adds onread option support into tls.connect(). The option is only used when the socket is not specified. The end behavior is the same as with net.connect()'s onread option. Just like with the net's option, it's a client side feature.

Also, adds new benchmark/tls/throughput-s2c.js benchmark to test the option and renames the existing throughput.js benchmark into throughput-c2s.js to have consistent naming.

Refs: #25436

Benchmark results (here recvbuflen=0 stands for the current behavior of allocating a new buffer for each chunk read):

tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=0 sendchunklen=256 type="buf" dur=5: 3,462.644485289712
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=65536 sendchunklen=256 type="buf" dur=5: 3,908.724691726506
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=1048576 sendchunklen=256 type="buf" dur=5: 3,880.9003883777
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=0 sendchunklen=32768 type="buf" dur=5: 6,609.7547144796
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=65536 sendchunklen=32768 type="buf" dur=5: 7,875.555400944821
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=1048576 sendchunklen=32768 type="buf" dur=5: 7,853.576701856802
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=0 sendchunklen=131072 type="buf" dur=5: 7,125.125787317291
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=65536 sendchunklen=131072 type="buf" dur=5: 8,429.701028374991
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=1048576 sendchunklen=131072 type="buf" dur=5: 8,512.095293725759
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=0 sendchunklen=16777216 type="buf" dur=5: 6,781.770526905906
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=65536 sendchunklen=16777216 type="buf" dur=5: 7,972.510549406974
tls/throughput-s2c.js recvbufgenfn="false" recvbuflen=1048576 sendchunklen=16777216 type="buf" dur=5: 7,958.803175049797

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines