Add method to add breadcrumb with string parameter.

sentry-core/src/main/java/io/sentry/core/SentryEvent.java

@@ -218,6 +218,10 @@ public void addBreadcrumb(Breadcrumb breadcrumb) {
     breadcrumbs.add(breadcrumb);
   }
 
+  public void addBreadcrumb(final @Nullable String message) {
+    this.addBreadcrumb(new Breadcrumb(message));
+  }
+
   Map<String, String> getTags() {
     return tags;
   }

sentry-core/src/test/java/io/sentry/core/SentryEventTest.kt

@@ -80,4 +80,11 @@ class SentryEventTest {
         event.exceptions = sentryExceptions
         assertFalse(event.isCrashed)
     }
+
+    @Test
+    fun `adds breadcrumb with string as a parameter`() {
+        val event = SentryEvent()
+        event.addBreadcrumb("breadcrumb")
+        assertEquals(1, event.breadcrumbs.filter { it.message == "breadcrumb" }.size)
+    }
 }