Update config and reference tests to v1.0.0-rc.0 + Reject BLS infinity pubkeys and signatures

[Nashatyrev]

PR Description

This is the continuation of @ajsutton PR #2952:

• Reject BLS infinity pubkeys and signatures
• Allow zero private key creation but throw when signing with this key
• Add BLSConstants.VALID_INFINITY temporary compatibility flag which may be set to true to preserve previous BLS behavior
• Make reference BLS tests covering both BLS implementations
• Mikuli implementation code clean up: many methods removed and/or inlined
• Adjust unit tests for the new BLS infinity treatment

Fixed Issue(s)

Part of #2951

Documentation

• I thought about documentation and added the documentation label to this PR if updates are required.

[Nashatyrev]

We just need to decide when and where to adjust the BLSConstants.VALID_INFINITY

[ajsutton]

We just need to decide when and where to adjust the BLSConstants.VALID_INFINITY

I was thinking we'd put it in Constants and then it could be set via the network definition file. Would be a non-standard option in network config, default to rejecting infinity as per 1.0 spec but our medalla.yaml could set it to allow infinity just on Medalla (and probably also Zinken but it will die soon).

[Nashatyrev]

I was thinking we'd put it in Constants

@ajsutton do you think that c80cdb9 crutch is ok as a temporary solution?

[ajsutton]

I was thinking we'd put it in Constants

@ajsutton do you think that c80cdb9 crutch is ok as a temporary solution?

Yep, that's exactly what I had in mind. Bit ugly but effective. :)

[ajsutton]

LGTM.