Fix benchmark code imports

Author: sidepelican

Samples/SwiftJavaExtractFFMSampleApp/src/jmh/java/org/swift/swiftkit/ffm/FFMDataBenchmark.java

@@ -17,6 +17,7 @@
 import com.example.swift.MySwiftLibrary;
 import org.openjdk.jmh.annotations.*;
 import org.openjdk.jmh.infra.Blackhole;
+import org.swift.swiftkit.ffm.foundation.Data;
 
 import java.lang.foreign.MemorySegment;
 import java.lang.foreign.ValueLayout;

Samples/SwiftJavaExtractJNISampleApp/src/jmh/java/com/example/swift/JNIDataBenchmark.java

@@ -18,6 +18,7 @@
 import org.openjdk.jmh.infra.Blackhole;
 import org.swift.swiftkit.core.ClosableSwiftArena;
 import org.swift.swiftkit.core.SwiftArena;
+import org.swift.swiftkit.core.foundation.Data;
 
 import java.util.concurrent.TimeUnit;