Added BTG to Docker Generate

docker-compose-generator/src/CryptoDefinition.cs

@@ -38,7 +38,13 @@ namespace DockerGenerator
 					CryptoFragment = "bitcoin",
 					CLightningFragment = "bitcoin-clightning",
 				},
-			};
+			    new CryptoDefinition()
+			    {
+			        Crypto = "btg",
+			        CryptoFragment = "bitcoingold",
+			        CLightningFragment = null,
+			    }
+            };
 		}
     }
 }