Merge #2809: [Tier Two] Pre dip7 upgrade

3007354 RPC: Add listquorums and getquoruminfo (Alessandro Rezzi)
747863c Added quorum and quorum manager classes (Alessandro Rezzi)

Pull request description:

  Abstract:
  The aim of this PR is adding all the background needed to implement Signing Requests (dip7). Two new classes are added that will help: storing/fetching/make sure we are connected to the latest k quorums

ACKs for top commit:
  Liquid369:
    ACK 3007354
  Fuzzbawls:
    ACK 3007354

Tree-SHA512: fa210544441d9c9e513adb40030c8f0caa1d8b28d0e6ae9c65a369418484511531600c780885d10dab255c4e6523926b1eabf3c67c7a7c0eee87955cb490ac9f

CMakeLists.txt

@@ -236,6 +236,7 @@ set(SERVER_SOURCES
         ./src/interfaces/wallet.cpp
         ./src/dbwrapper.cpp
         ./src/legacy/validation_zerocoin_legacy.cpp
+        ./src/llmq/quorums.cpp
         ./src/mapport.cpp
         ./src/merkleblock.cpp
         ./src/miner.cpp

src/Makefile.am

@@ -191,6 +191,7 @@ BITCOIN_CORE_H = \
   evo/providertx.h \
   evo/specialtx_validation.h \
   flatdb.h \
+  llmq/quorums.h \
   llmq/quorums_blockprocessor.h \
   llmq/quorums_commitment.h \
   llmq/quorums_connections.h \
@@ -367,6 +368,7 @@ libbitcoin_server_a_SOURCES = \
   evo/mnauth.cpp \
   evo/providertx.cpp \
   evo/specialtx_validation.cpp \
+  llmq/quorums.cpp \
   llmq/quorums_blockprocessor.cpp \
   llmq/quorums_commitment.cpp \
   llmq/quorums_connections.cpp \

src/evo/evonotificationinterface.cpp

@@ -6,6 +6,7 @@
 
 #include "evo/deterministicmns.h"
 #include "evo/mnauth.h"
+#include "llmq/quorums.h"
 #include "llmq/quorums_dkgsessionmgr.h"
 #include "validation.h"
 
@@ -19,6 +20,7 @@ void EvoNotificationInterface::UpdatedBlockTip(const CBlockIndex *pindexNew, con
 {
     // background thread updates
     llmq::quorumDKGSessionManager->UpdatedBlockTip(pindexNew, fInitialDownload);
+    llmq::quorumManager->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload);
 }
 
 void EvoNotificationInterface::NotifyMasternodeListChanged(bool undo, const CDeterministicMNList& oldMNList, const CDeterministicMNListDiff& diff)