Fix naming of abstract token split class

Author: martti007

src/test/java/com/unicity/sdk/common/split/BaseTokenSplitTest.java

@@ -34,7 +34,7 @@
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-public abstract class TokenSplitTest {
+public abstract class BaseTokenSplitTest {
 
   protected StateTransitionClient client;
 

src/test/java/com/unicity/sdk/functional/FunctionalTokenSplitTest.java

@@ -2,10 +2,10 @@
 
 import com.unicity.sdk.StateTransitionClient;
 import com.unicity.sdk.TestAggregatorClient;
-import com.unicity.sdk.common.split.TokenSplitTest;
+import com.unicity.sdk.common.split.BaseTokenSplitTest;
 import org.junit.jupiter.api.BeforeEach;
 
-public class FunctionalTokenSplitTest extends TokenSplitTest {
+public class FunctionalTokenSplitTest extends BaseTokenSplitTest {
   @BeforeEach
   void setUp() {
     this.client = new StateTransitionClient(new TestAggregatorClient());