Applied all fixes related to translating C to C++ code

Also fixed some typos and code alignment
Also adapted tutorial CPP samples
Fixed some identation problems

samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp

@@ -294,7 +294,7 @@ int main(int argc, char* argv[])
                 if( s.calibrationPattern == Settings::CHESSBOARD)
                 {
                     Mat viewGray;
-                    cvtColor(view, viewGray, CV_BGR2GRAY);
+                    cvtColor(view, viewGray, COLOR_BGR2GRAY);
                     cornerSubPix( viewGray, pointBuf, Size(11,11),
                         Size(-1,-1), TermCriteria( CV_TERMCRIT_EPS+CV_TERMCRIT_ITER, 30, 0.1 ));
                 }