Refactored DurationUtils to include DAYS field, and created string resources with days

app/src/test/java/com/philliphsu/clock2/DurationUtilsTest.java

@@ -0,0 +1,23 @@
+package com.philliphsu.clock2;
+
+import com.philliphsu.clock2.util.DurationUtils;
+
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by Phillip Hsu on 6/10/2016.
+ */
+public class DurationUtilsTest {
+
+    @Test
+    public void testBreakdown() {
+        long duration = TimeUnit.HOURS.toMillis(45)
+                + TimeUnit.MINUTES.toMillis(97);
+        long[] l = DurationUtils.breakdown(duration);
+        System.out.println(Arrays.toString(l));
+    }
+
+}