Merge pull request #1696 from keep-network/managed-grant-tracking

Index `grantee` in `ManagedGrantCreated` event

Enables filtering events from ManagedGrantFactory for 
a particular (original) grantee

Author: pdyraga

solidity/contracts/ManagedGrantFactory.sol

@@ -33,7 +33,7 @@ contract ManagedGrantFactory {
 
     event ManagedGrantCreated(
         address grantAddress,
-        address grantee
+        address indexed grantee
     );
 
     constructor(