added ImmutablePoolCreator contract

web3/contracts/security/terminus/ImmutablePoolCreator.sol

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+interface StakerInterface {
+    function createPool(
+        uint256 tokenType,
+        address tokenAddress,
+        uint256 tokenID,
+        bool transferable,
+        uint256 lockupSeconds,
+        uint256 cooldownSeconds,
+        address administrator
+    ) external;
+
+    function transferPoolAdministration(uint256 poolID, address newAdministrator) external;
+}
+
+contract ImmutablePoolCreator {
+    address public immutable stakerAddress;
+
+    event ImmutablePoolCreated(uint256 poolID);
+
+    constructor(address _stakerAddress) {
+        stakerAddress = _stakerAddress;
+    }
+
+    function createImmutablePool(
+        uint256 tokenType,
+        address tokenAddress,
+        uint256 tokenID,
+        bool transferable,
+        uint256 lockupSeconds,
+        uint256 cooldownSeconds
+    ) external {
+        StakerInterface staker = StakerInterface(stakerAddress);
+
+        // sender as the administrator
+        staker.createPool(tokenType, tokenAddress, tokenID, transferable, lockupSeconds, cooldownSeconds, msg.sender);
+
+        // 0 address as the administrator to make the pool immutable
+        staker.transferPoolAdministration(poolID, address(0));
+
+        emit ImmutablePoolCreated(poolID);
+    }
+}