fixed build

Author: sanzmauro

client/src/main/java/io/split/inputValidation/TrafficTypeValidator.java

@@ -1,6 +1,6 @@
 package io.split.inputValidation;
 
-import io.split.engine.cache.SplitCache;
+import io.split.cache.SplitCache;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

client/src/test/java/io/split/inputValidation/TrafficTypeValidatorTest.java

@@ -1,6 +1,6 @@
 package io.split.inputValidation;
 
-import io.split.engine.cache.SplitCache;
+import io.split.cache.SplitCache;
 import org.junit.Assert;
 import org.junit.Test;
 import org.mockito.Mockito;