Improve the benchmarks

[DanielZlotin]

Some suggestions by matthargett:

1. hash-map from Jetstream is a throughput benchmark, where TTI is usually limited by latency. (Enabling JIT will typically increase latency and therefore TTI.) Using code-first-load and code-multi-load from JetStream might be a better choice.
2. Octane is purely throughput based, and JetStream contains its relevant benchmarks. It's been deprecated since the use cases it captures that aren't in JetStream are from a bygone era of brower-based JS patterns. Adding in the JetStream version of an Octane benchmark (like Typescript) might be a better choice.
3. Sunspider benchmarks that are still relevant to modern JS are included in JetStream. If you wanted to include tests relevant to RN, date-format-tofte and date-format-xparb might be good candidates.

[DanielZlotin]

https://plg.uwaterloo.ca/~dynjs/jsbench/