log: introduce a new category for private broadcast

src/logging.cpp

@@ -202,6 +202,7 @@ static const std::map<std::string, BCLog::LogFlags, std::less<>> LOG_CATEGORIES_
     {"scan", BCLog::SCAN},
     {"txpackages", BCLog::TXPACKAGES},
     {"kernel", BCLog::KERNEL},
+    {"privatebroadcast", BCLog::PRIVBROADCAST},
 };
 
 static const std::unordered_map<BCLog::LogFlags, std::string> LOG_CATEGORIES_BY_FLAG{

src/logging.h

@@ -96,6 +96,7 @@ namespace BCLog {
         SCAN        = (CategoryMask{1} << 27),
         TXPACKAGES  = (CategoryMask{1} << 28),
         KERNEL      = (CategoryMask{1} << 29),
+        PRIVBROADCAST = (CategoryMask{1} << 30),
         ALL         = ~NONE,
     };
     enum class Level {