Add JLHTTP benchmark

[amichair]

Continuation of PR #2036, moved to branch round-14 as requested.

[NateBrady23]

jlhttp: setup.sh and framework processes have terminated
Server jlhttp: Framework processes have terminated
verify: 100% |####################################################| Rough Time: 00:01:48
================================================================================
  Verification Summary

| Test: jlhttp
|       plaintext   : PASS
|       json        : PASS
================================================================================

Looks like this is good! Passing travis now and local tests!