Move ::nPruneTarget into BlockManager

src/Makefile.am

@@ -174,6 +174,7 @@ BITCOIN_CORE_H = \
   interfaces/ipc.h \
   interfaces/node.h \
   interfaces/wallet.h \
+  kernel/blockmanager_opts.h \
   kernel/chain.h \
   kernel/chainstatemanager_opts.h \
   kernel/checks.h \
@@ -200,6 +201,7 @@ BITCOIN_CORE_H = \
   netbase.h \
   netgroup.h \
   netmessagemaker.h \
+  node/blockmanager_args.h \
   node/blockstorage.h \
   node/caches.h \
   node/chainstate.h \
@@ -387,6 +389,7 @@ libbitcoin_node_a_SOURCES = \
   net.cpp \
   net_processing.cpp \
   netgroup.cpp \
+  node/blockmanager_args.cpp \
   node/blockstorage.cpp \
   node/caches.cpp \
   node/chainstate.cpp \