Add CoinbaseDevReward payment support

src/Miningcore/Blockchain/Bitcoin/BitcoinJob.cs

@@ -252,6 +252,9 @@ protected virtual Transaction CreateOutputTransaction()
         if(coin.HasCommunityAddress)
             rewardToPool = CreateCommunityAddressOutputs(tx, rewardToPool);
 
+        if(coin.HasCoinbaseDevReward)
+            rewardToPool = CreateCoinbaseDevRewardOutputs(tx, rewardToPool);
+
         if(coin.HasFoundation)
             rewardToPool = CreateFoundationOutputs(tx, rewardToPool);
 
@@ -574,6 +577,32 @@ protected virtual Money CreateCommunityAddressOutputs(Transaction tx, Money rewa
     }
     #endregion // CommunityAddres
 
+    #region CoinbaseDevReward
+
+    protected CoinbaseDevRewardTemplateExtra CoinbaseDevRewardParams;
+
+    protected virtual Money CreateCoinbaseDevRewardOutputs(Transaction tx, Money reward)
+    {
+        if(CoinbaseDevRewardParams.CoinbaseDevReward != null)
+        {
+            CoinbaseDevReward[] CBRewards;
+            CBRewards = new[] { CoinbaseDevRewardParams.CoinbaseDevReward.ToObject<CoinbaseDevReward>() };
+
+            foreach(var CBReward in CBRewards)
+            {
+                if(!string.IsNullOrEmpty(CBReward.ScriptPubkey))
+                {
+                    Script payeeAddress = new (CBReward.ScriptPubkey.HexToByteArray());
+                    var payeeReward = CBReward.Value;
+                    tx.Outputs.Add(payeeReward, payeeAddress);
+                }
+            }
+        }
+        return reward;
+    }
+
+    #endregion // CoinbaseDevReward
+
     #region Foundation
 
     protected FoundationBlockTemplateExtra foundationParameters;
@@ -684,6 +713,9 @@ public void Init(BlockTemplate blockTemplate, string jobId,
         if (coin.HasMinerFund)
             minerFundParameters = BlockTemplate.Extra.SafeExtensionDataAs<MinerFundTemplateExtra>("coinbasetxn", "minerfund");
 
+		if(coin.HasCoinbaseDevReward)
+            CoinbaseDevRewardParams = BlockTemplate.Extra.SafeExtensionDataAs<CoinbaseDevRewardTemplateExtra>();
+
 		if(coin.HasFoundation)
             foundationParameters = BlockTemplate.Extra.SafeExtensionDataAs<FoundationBlockTemplateExtra>();
 

src/Miningcore/Blockchain/Bitcoin/DaemonResponses/CoinbaseDevReward.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace Miningcore.Blockchain.Bitcoin.DaemonResponses
+{
+    public class CoinbaseDevReward
+    {
+        public string ScriptPubkey { get; set; }
+        public long   Value        { get; set; }
+    }
+
+    public class CoinbaseDevRewardTemplateExtra
+    {
+        public JToken CoinbaseDevReward { get; set; }
+    }
+}

src/Miningcore/Configuration/ClusterConfig.cs

@@ -233,6 +233,9 @@ public class BitcoinNetworkParams
     [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
     public bool HasCommunityAddress { get; set; }
 
+    [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
+    public bool HasCoinbaseDevReward { get; set; }
+
     [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
     public bool HasFoundation { get; set; }