Fix Integration Tests (hyperledger-web3j#1294)

* Initial Commit.

* Initial IT Commit

* CoreIT test fixes

* 80% of Scenarios pass.

* Fixed more tests.

* All tests are passing
Clean up

* Applied feedback

* Wrappers are now generated with every build of codegen

* Removed primitive contract. There is not use for it

* Fixed failing test.
Wrappers will be generated only if the sol file is provided.

integration-tests/src/test/java/org/web3j/protocol/besu/BesuPrivacyQuickstartIntegrationTest.java

@@ -17,6 +17,7 @@
 import java.util.Arrays;
 import java.util.Collections;
 
+import org.com.test.contract.HumanStandardToken;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;