Add bitdeque, an std::deque<bool> analogue that does bit packing.

Author: sipa

src/Makefile.am

@@ -264,6 +264,7 @@ BITCOIN_CORE_H = \
   undo.h \
   util/asmap.h \
   util/bip32.h \
+  util/bitdeque.h \
   util/bytevectorhash.h \
   util/check.h \
   util/epochguard.h \

src/Makefile.test.include

@@ -235,6 +235,7 @@ test_fuzz_fuzz_SOURCES = \
  test/fuzz/banman.cpp \
  test/fuzz/base_encode_decode.cpp \
  test/fuzz/bech32.cpp \
+ test/fuzz/bitdeque.cpp \
  test/fuzz/block.cpp \
  test/fuzz/block_header.cpp \
  test/fuzz/blockfilter.cpp \