Añadida suite para todos los tests

src/test/java/inf/uva/es/ivagonz/practica4/AllTest.java

+package inf.uva.es.ivagonz.practica4;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+import org.junit.runners.Suite.SuiteClasses;
+
+@RunWith(Suite.class)
+@SuiteClasses({ AllColaDeAmigosTest.class, AllPersonaTest.class })
+public class AllTest {
+
+}