MarketplaceV3 updates and design doc (#334)

* thirdweb stamp on marketplace-v3 contracts

* ascii art

* slither action

* remove ascii, add author

* docs

* fix bid amounts

* v3.4.2-0

* design doc

* fix doc

* Update marketplace-v3.md

Author: kumaryash90

contracts/extension/plugin/ContractMetadataLogic.sol

@@ -1,10 +1,14 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "./ContractMetadataStorage.sol";
 import "../../extension/interface/IContractMetadata.sol";
 
 /**
+ *  @author  thirdweb.com
+ *
  *  @title   Contract Metadata
  *  @notice  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
  *           for you contract.

contracts/extension/plugin/ContractMetadataStorage.sol

@@ -1,6 +1,11 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
+/**
+ *  @author  thirdweb.com
+ */
 library ContractMetadataStorage {
     bytes32 public constant CONTRACT_METADATA_STORAGE_POSITION = keccak256("contract.metadata.storage");
 

contracts/extension/plugin/PermissionsEnumerableLogic.sol

@@ -1,10 +1,14 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "./PermissionsEnumerableStorage.sol";
 import "./PermissionsLogic.sol";
 
 /**
+ *  @author  thirdweb.com
+ *
  *  @title   PermissionsEnumerable
  *  @dev     This contracts provides extending-contracts with role-based access control mechanisms.
  *           Also provides interfaces to view all members with a given role, and total count of members.

contracts/extension/plugin/PermissionsEnumerableStorage.sol

@@ -1,8 +1,13 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "../../extension/interface/IPermissionsEnumerable.sol";
 
+/**
+ *  @author  thirdweb.com
+ */
 library PermissionsEnumerableStorage {
     bytes32 public constant PERMISSIONS_ENUMERABLE_STORAGE_POSITION = keccak256("permissions.enumerable.storage");
 

contracts/extension/plugin/PermissionsLogic.sol

@@ -1,11 +1,15 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "../../extension/interface/IPermissions.sol";
 import "./PermissionsStorage.sol";
 import "../../lib/TWStrings.sol";
 
 /**
+ *  @author  thirdweb.com
+ *
  *  @title   Permissions
  *  @dev     This contracts provides extending-contracts with role-based access control mechanisms
  */

contracts/extension/plugin/PermissionsStorage.sol

@@ -1,6 +1,11 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
+/**
+ *  @author  thirdweb.com
+ */
 library PermissionsStorage {
     bytes32 public constant PERMISSIONS_STORAGE_POSITION = keccak256("permissions.storage");
 

contracts/extension/plugin/PlatformFeeLogic.sol

@@ -1,10 +1,14 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "./PlatformFeeStorage.sol";
 import "../../extension/interface/IPlatformFee.sol";
 
 /**
+ *  @author  thirdweb.com
+ *
  *  @title   Platform Fee
  *  @notice  Thirdweb's `PlatformFee` is a contract extension to be used with any base contract. It exposes functions for setting and reading
  *           the recipient of platform fee and the platform fee basis points, and lets the inheriting contract perform conditional logic

contracts/extension/plugin/PlatformFeeStorage.sol

@@ -1,6 +1,11 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
+/**
+ *  @author  thirdweb.com
+ */
 library PlatformFeeStorage {
     bytes32 public constant PLATFORM_FEE_STORAGE_POSITION = keccak256("platform.fee.storage");
 

contracts/extension/plugin/PluginMap.sol

@@ -1,9 +1,14 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "../interface/plugin/IPluginMap.sol";
 import "../../openzeppelin-presets/utils/EnumerableSet.sol";
 
+/**
+ *  @author  thirdweb.com
+ */
 contract PluginMap is IPluginMap {
     using EnumerableSet for EnumerableSet.Bytes32Set;
 

contracts/extension/plugin/Router.sol

@@ -1,11 +1,16 @@
 // SPDX-License-Identifier: Apache-2.0
+// thirdweb Contract
+
 pragma solidity ^0.8.0;
 
 import "../interface/plugin/IRouter.sol";
 import "../../extension/Multicall.sol";
 import "../../eip/ERC165.sol";
 import "../../openzeppelin-presets/utils/EnumerableSet.sol";
 
+/**
+ *  @author  thirdweb.com
+ */
 library RouterStorage {
     bytes32 public constant ROUTER_STORAGE_POSITION = keccak256("router.storage");