Improve `genScript.ts`

[guidanoli]

• Remove sleep commands
• Check if server-manager is up by sending GetVersion requests
• Check if inputs were processed by sending GetEpochStatus requests

Closes #197

[guidanoli]

:test_tube: Benchmark

I've run update-proofs.sh before and after the change. Here are the results (on my x86 machine running Linux).

• Before: 37.767s
• After: 11.689s (~323% faster!)

That's a huge gain right there. We achieve this level of speedup by not assuming a certain step will take up to $n$ seconds on all machines. Instead, we check whether we can move on to the next step as quick as possible.

[ZzzzHui]

On my MacBook, the run time decreases from 2'24" to 1'32". Well done!