add historical tombstone option

Author: supervacuus

sentry-android-core/src/main/java/io/sentry/android/core/SentryAndroidOptions.java

@@ -217,6 +217,17 @@ public interface BeforeCaptureCallback {
    */
   private boolean reportHistoricalAnrs = false;
 
+  /**
+   * Controls whether to report historical Tombstones from the {@link ApplicationExitInfo} system
+   * API. When enabled, reports all of the Tombstones available in the {@link
+   * ActivityManager#getHistoricalProcessExitReasons(String, int, int)} list, as opposed to
+   * reporting only the latest one.
+   *
+   * <p>These events do not affect crash rate nor are they enriched with additional information from
+   * {@link IScope} like breadcrumbs.
+   */
+  private boolean reportHistoricalTombstones = false;
+
   /**
    * Controls whether to send ANR (v2) thread dump as an attachment with plain text. The thread dump
    * is being attached from {@link ApplicationExitInfo#getTraceInputStream()}, if available.
@@ -593,6 +604,14 @@ public void setReportHistoricalAnrs(final boolean reportHistoricalAnrs) {
     this.reportHistoricalAnrs = reportHistoricalAnrs;
   }
 
+  public boolean isReportHistoricalTombstones() {
+    return reportHistoricalTombstones;
+  }
+
+  public void setReportHistoricalTombstones(final boolean reportHistoricalTombstones) {
+    this.reportHistoricalTombstones = reportHistoricalTombstones;
+  }
+
   public boolean isAttachAnrThreadDump() {
     return attachAnrThreadDump;
   }