ts: refactor OpenCV tests

- removed tr1 usage (dropped in C++17)
- moved includes of vector/map/iostream/limits into ts.hpp
- require opencv_test + anonymous namespace (added compile check)
- fixed norm() usage (must be from cvtest::norm for checks) and other conflict functions
- added missing license headers

modules/imgproc/perf/perf_bilateral.cpp

@@ -1,15 +1,13 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
 #include "perf_precomp.hpp"
 
-using namespace std;
-using namespace cv;
-using namespace perf;
-using namespace testing;
-using std::tr1::make_tuple;
-using std::tr1::get;
+namespace opencv_test {
 
 CV_ENUM(Mat_Type, CV_8UC1, CV_8UC3, CV_32FC1, CV_32FC3)
 
-typedef TestBaseWithParam< tr1::tuple<Size, int, Mat_Type> > TestBilateralFilter;
+typedef TestBaseWithParam< tuple<Size, int, Mat_Type> > TestBilateralFilter;
 
 PERF_TEST_P( TestBilateralFilter, BilateralFilter,
              Combine(
@@ -36,3 +34,5 @@ PERF_TEST_P( TestBilateralFilter, BilateralFilter,
 
     SANITY_CHECK(dst, .01, ERROR_RELATIVE);
 }
+
+} // namespace