EIP-2537: BLS updates for subgroups checks.

[jflo]

The use of BLS curves has been amended to require a subgroup check for most operations:

https://eips.ethereum.org/EIPS/eip-2537#subgroup-checks

Advice from @shemnon

ethereum/execution-spec-tests#499 are the pending BLS tests, but you will want ethereum/execution-spec-tests#511 in your local set so --traces can be turned on.

Here's my CLI I use. Your directories of choice will differ.

fill --from=Prague --until=Prague -v tests/prague --evm-bin /Users//src/besu/build/install/besu/bin/evmtool --t8n-dump-dir build/besu_eof --traces > build/besu_eof/res.txt

[marioevz]

We just merged ethereum/execution-spec-tests#511 and rebased all Prague EIP tests including ethereum/execution-spec-tests#499 on top of it so no need to do it manually anymore 👍