Configure openssl.cnf EC, Ciphers for TLS benchmarks

[DeagleGross]

TLS benchmarks can be very fragile depending on specific TLS parameters like elliptic curves and cipher suites used by the crypto-driver.

This PR adds:

1. crank agent dockerfiles setup, which allow configuring openssl differently (using specific ECs and CipherSuites which are FIPS compliant)
2. readme to explain how to perform network dump collection and how to investigate the serverhello packet; how to setup windows machine as well.

This PR should help perform a test correctly and explains a specific dockerfile changes which affect the TLS behavior on server side