* Use BLS keys for operator keys
* Add "bls generate" RPC to generate BLS keys
* Use unique_ptr to store blsKeyOperator and blsPubKeyOperator
Needed because the Chia BLS library crashes when keys are created before
the library is initialized, even if keys are not used. This is the case here
as we have static instances here.
* Remove unnecessary CheckSignature calls
This seems to be some garbage I left in by mistake.
* Fixed review comments
* Fix rpc help for operator keys
All keys that are used as examples are random. None of the secret keys
belongs to any of the public keys.
* Use .GetHash() instead of ::SerializeHash() for BLS pubkeys in txmempool.cpp
* Rename mapProTxBlsPubKeys to mapProTxBlsPubKeyHashes
* Don't use GetTransaction in CheckProUpRegTx
GetTransaction locks mempool.cs internally. This brings messes up the locking
order of cs_main, mempool.cs and CCheckQueue::ControlMutex.
* Lock cs_main in TestChainSetup::CreateBlock when updating CbTx
* Split keyIDMasternode into keyIDOwner/keyIDOperator/keyIDVoting
keyIDOwner is the key used for things which should stay in control of the
collateral owner, like proposal voting.
keyIDOperator is the key used for operational things, like signing network
messages, signing trigger/watchdog objects and trigger votes.
keyIDVoting is the key used for proposal voting
Legacy masternodes will always have the same key for all 3 to keep
compatibility.
Using different keys is only allowed after spork15 activation.
* Forbid reusing collateral keys for operator/owner keys and vice versa
* Bump SERIALIZATION_VERSION_STRING in CMasternodeMan
