fix: config engine payload bnb (#181)

* fix: config engine payload bnb

* fix: e2e test to not allow isolated assets as good collateral

src/ProtocolV3TestBase.sol

@@ -317,6 +317,8 @@ contract ProtocolV3TestBase is CommonTestBase {
         configs[i].usageAsCollateralEnabled &&
         // not stable borrowable as this makes testing stable borrowing unnecessary hard to reason about
         !configs[i].stableBorrowRateEnabled &&
+        // not isolated asset as we can only borrow stablecoins against it
+        configs[i].debtCeiling == 0 &&
         // supply cap not yet reached
         ((configs[i].supplyCap * 10 ** configs[i].decimals) >
           IERC20(configs[i].aToken).totalSupply()) &&

src/v3-config-engine/AaveV3PayloadBnb.sol

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {AaveV3Bnb} from 'aave-address-book/AaveV3Bnb.sol';
+import './AaveV3Payload.sol';
+
+/**
+ * @dev Base smart contract for an Aave v3.0.2 (compatible with 3.0.0) listing on v3 Bnb.
+ * @author BGD Labs
+ */
+abstract contract AaveV3PayloadBnb is AaveV3Payload(IEngine(AaveV3Bnb.CONFIG_ENGINE)) {
+  function getPoolContext() public pure override returns (IEngine.PoolContext memory) {
+    return IEngine.PoolContext({networkName: 'BNB Smart Chain', networkAbbreviation: 'Bnb'});
+  }
+}