Convert everything except wallet/qt to new serialization

src/policy/feerate.h

@@ -48,12 +48,7 @@ public:
     CFeeRate& operator+=(const CFeeRate& a) { nSatoshisPerK += a.nSatoshisPerK; return *this; }
     std::string ToString() const;
 
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action) {
-        READWRITE(nSatoshisPerK);
-    }
+    SERIALIZE_METHODS(CFeeRate, obj) { READWRITE(obj.nSatoshisPerK); }
 };
 
 #endif //  BITCOIN_POLICY_FEERATE_H