add whitelist quota template

contracts/DODOFee/UserQuota.sol

@@ -0,0 +1,27 @@
+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+
+import {Ownable} from "../lib/Ownable.sol";
+
+contract UserQuota is Ownable {
+
+    mapping(address => uint256) public userQuota;
+    uint256 constant quota = 375 * 10**6; //For example 375u on eth
+
+    function setUserQuota(address[] memory users) external onlyOwner {
+        for(uint256 i = 0; i< users.length; i++) {
+            require(users[i] != address(0), "USER_INVALID");
+            userQuota[users[i]] = quota;
+        }
+    }
+
+    function getUserQuota(address user) external view returns (uint256) {
+        return userQuota[user];
+    }
+}