opencv_run_all_tests.sh script added to -tests package.

(cherry picked from commit d45350a06a)

cmake/templates/opencv_run_all_tests.sh.in

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+OPENCV_TEST_PATH=@OPENCV_TEST_INSTALL_PATH@
+export OPENCV_TEST_DATA_PATH=@CMAKE_INSTALL_PREFIX@/share/OpenCV/testdata
+
+SUMMARY_STATUS=0
+for t in "$OPENCV_TEST_PATH/"opencv_test_* "$OPENCV_TEST_PATH/"opencv_perf_*;
+do
+  "$t" --perf_min_samples=1 --perf_force_samples=1 --gtest_output=xml:$t-`date --rfc-3339=date`.xml
+  TEST_STATUS=$?
+  if [ $TEST_STATUS -ne 0 ]; then
+    SUMMARY_STATUS=$TEST_STATUS
+  fi
+done
+
+rm -f /tmp/__opencv_temp.*
+
+if [ $SUMMARY_STATUS -eq 0 ]; then
+  echo "All OpenCV tests finished successfully"
+else
+  echo "OpenCV tests finished with status $SUMMARY_STATUS"
+fi
+
+return $SUMMARY_STATUS