chainparams: Add BIP 44 coin type (as registered in SLIP 44)

src/chainparams.h

@@ -81,6 +81,7 @@ public:
     unsigned int EquihashN() const { return nEquihashN; }
     unsigned int EquihashK() const { return nEquihashK; }
     std::string CurrencyUnits() const { return strCurrencyUnits; }
+    uint32_t BIP44CoinType() const { return bip44CoinType; }
     /** Make miner stop after a block is found. In RPC, don't return until nGenProcLimit blocks are generated */
     bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
     /** In the future use NetworkIDString() for RPC fields */
@@ -114,6 +115,7 @@ protected:
     std::string bech32HRPs[MAX_BECH32_TYPES];
     std::string strNetworkID;
     std::string strCurrencyUnits;
+    uint32_t bip44CoinType;
     CBlock genesis;
     std::vector<SeedSpec6> vFixedSeeds;
     bool fMiningRequiresPeers = false;