Initial PegsCC implementation (#27)

src/primitives/transaction.h

@@ -46,6 +46,7 @@
 #include "zcash/Proof.hpp"
 
 extern uint32_t ASSETCHAINS_MAGIC;
+extern std::string ASSETCHAINS_SELFIMPORT;
 
 // Overwinter transaction version
 static const int32_t OVERWINTER_TX_VERSION = 3;
@@ -711,6 +712,11 @@ public:
         return (vin.size() == 1 && vin[0].prevout.n == 10e8);
     }
 
+    bool IsPegsImport() const
+    {
+        return (ASSETCHAINS_SELFIMPORT=="PEGSCC" && vin[0].prevout.n == 10e8);
+    }
+
     friend bool operator==(const CTransaction& a, const CTransaction& b)
     {
         return a.hash == b.hash;