Add Governor module connecting with AccessManager

contracts/governance/Governor.sol

@@ -208,6 +208,13 @@ abstract contract Governor is Context, ERC165, EIP712, Nonces, IGovernor, IERC72
         return _proposals[proposalId].eta;
     }
 
+    /**
+     * @dev See {IGovernor-proposalEta}.
+     */
+    function proposalNeedsQueuing(uint256) public view virtual returns (bool) {
+        return false;
+    }
+
     /**
      * @dev Reverts if the `msg.sender` is not the executor. In case the executor is not this contract
      * itself, the function reverts if `msg.data` is not whitelisted as a result of an {execute}

contracts/governance/IGovernor.sol

@@ -245,6 +245,12 @@ interface IGovernor is IERC165, IERC6372 {
      */
     function proposalEta(uint256 proposalId) external view returns (uint256);
 
+    /**
+     * @notice module:core
+     * @dev Whether a proposal needs to be queued before execution.
+     */
+    function proposalNeedsQueuing(uint256 proposalId) external view returns (bool);
+
     /**
      * @notice module:user-config
      * @dev Delay, between the proposal is created and the vote starts. The unit this duration is expressed in depends

contracts/governance/extensions/GovernorTimelockAccess.sol

@@ -96,6 +96,14 @@ abstract contract GovernorTimelockAccess is Governor {
         return (delay, indirect);
     }
 
+    /**
+     * @dev See {IGovernor-proposalEta}.
+     */
+    function proposalNeedsQueuing(uint256 proposalId) public view virtual override returns (bool) {
+        return _executionPlan[proposalId].delay > 0;
+    }
+
+
     /**
      * @dev See {IGovernor-propose}
      */

contracts/governance/extensions/GovernorTimelockCompound.sol

@@ -54,6 +54,13 @@ abstract contract GovernorTimelockCompound is Governor {
         return address(_timelock);
     }
 
+    /**
+     * @dev See {IGovernor-proposalEta}.
+     */
+    function proposalNeedsQueuing(uint256) public view virtual override returns (bool) {
+        return true;
+    }
+
     /**
      * @dev Function to queue a proposal to the timelock.
      */

contracts/governance/extensions/GovernorTimelockControl.sol

@@ -67,6 +67,13 @@ abstract contract GovernorTimelockControl is Governor {
         return address(_timelock);
     }
 
+    /**
+     * @dev See {IGovernor-proposalEta}.
+     */
+    function proposalNeedsQueuing(uint256) public view virtual override returns (bool) {
+        return true;
+    }
+
     /**
      * @dev Function to queue a proposal to the timelock.
      */

contracts/mocks/docs/governance/MyGovernor.sol

@@ -40,6 +40,10 @@ contract MyGovernor is
         return super.state(proposalId);
     }
 
+    function proposalNeedsQueuing(uint256 proposalId) public view virtual override(Governor, GovernorTimelockControl) returns (bool) {
+        return super.proposalNeedsQueuing(proposalId);
+    }
+
     function _queueOperations(
         uint256 proposalId,
         address[] memory targets,

contracts/mocks/governance/GovernorStorageMock.sol

@@ -28,6 +28,10 @@ abstract contract GovernorStorageMock is
         return super.proposalThreshold();
     }
 
+    function proposalNeedsQueuing(uint256 proposalId) public view virtual override(Governor, GovernorTimelockControl) returns (bool) {
+        return super.proposalNeedsQueuing(proposalId);
+    }
+
     function _propose(
         address[] memory targets,
         uint256[] memory values,

contracts/mocks/governance/GovernorTimelockCompoundMock.sol

@@ -28,6 +28,10 @@ abstract contract GovernorTimelockCompoundMock is
         return super.proposalThreshold();
     }
 
+    function proposalNeedsQueuing(uint256 proposalId) public view virtual override(Governor, GovernorTimelockCompound) returns (bool) {
+        return super.proposalNeedsQueuing(proposalId);
+    }
+
     function _queueOperations(
         uint256 proposalId,
         address[] memory targets,

contracts/mocks/governance/GovernorTimelockControlMock.sol

@@ -26,6 +26,10 @@ abstract contract GovernorTimelockControlMock is
         return super.proposalThreshold();
     }
 
+    function proposalNeedsQueuing(uint256 proposalId) public view virtual override(Governor, GovernorTimelockControl) returns (bool) {
+        return super.proposalNeedsQueuing(proposalId);
+    }
+
     function _queueOperations(
         uint256 proposalId,
         address[] memory targets,

test/utils/introspection/SupportsInterface.behavior.js

@@ -61,6 +61,7 @@ const INTERFACES = {
     'proposalDeadline(uint256)',
     'proposalProposer(uint256)',
     'proposalEta(uint256)',
+    'proposalNeedsQueuing(uint256)',
     'votingDelay()',
     'votingPeriod()',
     'quorum(uint256)',