DPP factory and init

contracts/DODOPrivatePool/intf/IDPP.sol

@@ -0,0 +1,34 @@
+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+pragma experimental ABIEncoderV2;
+
+interface IDPP {
+    // function init(
+    //     address owner,
+    //     address maintainer,
+    //     address baseTokenAddress,
+    //     address quoteTokenAddress,
+    //     address lpFeeRateModel,
+    //     address mtFeeRateModel,
+    //     address tradePermissionManager,
+    //     address gasPriceSource,
+    //     address iSource,
+    //     address kSource,
+    //     address iSmartApprove
+    // ) external;
+
+    function init(
+        address owner,
+        address maintainer,
+        address baseTokenAddress,
+        address quoteTokenAddress,
+        address iSmartApprove,
+        address[] memory configAddresses
+    ) external;
+}