feat: added new fields needed for client calculations

Author: sendra

contracts/misc/UiPoolDataProviderV2V3.sol

@@ -43,14 +43,16 @@ contract UiPoolDataProviderV2V3 is IUiPoolDataProviderV3 {
       uint256,
       uint256,
       uint256,
+      uint256,
       uint256
     )
   {
     return (
       interestRateStrategy.variableRateSlope1(),
       interestRateStrategy.variableRateSlope2(),
       interestRateStrategy.stableRateSlope1(),
-      interestRateStrategy.stableRateSlope2()
+      interestRateStrategy.stableRateSlope2(),
+      interestRateStrategy.OPTIMAL_UTILIZATION_RATE()
     );
   }
 
@@ -96,6 +98,7 @@ contract UiPoolDataProviderV2V3 is IUiPoolDataProviderV3 {
       reserveData.priceInMarketReferenceCurrency = oracle.getAssetPrice(
         reserveData.underlyingAsset
       );
+      reserveData.priceOracle = oracle.getSourceOfAsset(reserveData.underlyingAsset);
 
       reserveData.availableLiquidity = IERC20Detailed(reserveData.underlyingAsset).balanceOf(
         reserveData.aTokenAddress
@@ -134,7 +137,8 @@ contract UiPoolDataProviderV2V3 is IUiPoolDataProviderV3 {
         reserveData.variableRateSlope1,
         reserveData.variableRateSlope2,
         reserveData.stableRateSlope1,
-        reserveData.stableRateSlope2
+        reserveData.stableRateSlope2,
+        reserveData.optimalUsageRatio
       ) = getInterestRateStrategySlopes(
         DefaultReserveInterestRateStrategy(reserveData.interestRateStrategyAddress)
       );

contracts/misc/interfaces/IAaveOracle.sol

@@ -14,4 +14,11 @@ interface IAaveOracle {
     @dev returns the asset price in ETH
      */
   function getAssetPrice(address asset) external view returns (uint256);
+
+  /**
+   * @notice Returns the address of the source for an asset address
+   * @param asset The address of the asset
+   * @return The address of the source
+   */
+  function getSourceOfAsset(address asset) external view returns (address);
 }

contracts/misc/interfaces/IUiPoolDataProviderV3.sol

@@ -37,10 +37,12 @@ interface IUiPoolDataProviderV3 {
     uint256 stableDebtLastUpdateTimestamp;
     uint256 totalScaledVariableDebt;
     uint256 priceInMarketReferenceCurrency;
+    address priceOracle;
     uint256 variableRateSlope1;
     uint256 variableRateSlope2;
     uint256 stableRateSlope1;
     uint256 stableRateSlope2;
+    uint256 optimalUsageRatio;
     // v3
     bool isPaused;
     uint128 accruedToTreasury;