* Implement creation and propagation of dummy contributions
These act as a ping which is broadcast a few blocks before the dummy
commitments are created. They are meant to determine online/offline members.
* Use information about received dummy contributions to determine validMembers
* Fix PoSe tests
* Fix dummy DKG phase progress in PoSe tests and give tests more time
Mine one block at a time until we reach the mining phase.
* Add SPORK_17_QUORUM_DKG_ENABLED spork
* Implement CDummyDKG and CDummyCommitment until we have the real DKG merged
This is only used on testnet/devnet/regtest and will NEVER be used on
mainnet. It is NOT SECURE AT ALL!
See comment in quorums_dummydkg.h for more details.
* Test simple PoSe in DIP3 tests
* Generate 2 instead of 4 blocks per iteration in PoSe tests
4 was based on old chainparams where I used larger phases.
* Only sleep when necessary in PoSe tests
* Fix typo in comment
* Give PoSe tests more time and sync after fast-forward
