add dvm && dpp admin control

contracts/DODOVendingMachine/impl/DVMAdmin.sol

@@ -0,0 +1,50 @@
+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+pragma experimental ABIEncoderV2;
+
+import {IDVM} from "../intf/IDVM.sol";
+import {InitializableOwnable} from "../../lib/InitializableOwnable.sol";
+
+contract DVMAdmin is InitializableOwnable {
+
+    address public dvm;
+
+    function init(address owner, address _dvm) external {
+        initOwner(owner);
+        dvm = _dvm;
+    }
+
+    function setLpFeeRateModel(address newLpFeeRateModel) external onlyOwner {
+        IDVM(dvm).setLpFeeRateModel(newLpFeeRateModel);
+    }
+
+    function setMtFeeRateModel(address newMtFeeRateModel) external onlyOwner {
+        IDVM(dvm).setMtFeeRateModel(newMtFeeRateModel);
+    }
+
+    function setTradePermissionManager(address newTradePermissionManager) external onlyOwner {
+        IDVM(dvm).setTradePermissionManager(newTradePermissionManager);
+    }
+
+    function setMaintainer(address newMaintainer) external onlyOwner {
+        IDVM(dvm).setMaintainer(newMaintainer);
+    }
+
+    function setGasPriceSource(address newGasPriceLimitSource) external onlyOwner {
+        IDVM(dvm).setGasPriceSource(newGasPriceLimitSource);
+    }
+
+    function setBuy(bool open) external onlyOwner {
+        IDVM(dvm).setBuy(open);
+    }
+
+    function setSell(bool open) external onlyOwner {
+        IDVM(dvm).setSell(open);
+    }
+}