Fix modules/ typos

Found using `codespell -q 3 -S ./3rdparty -L activ,amin,ang,atleast,childs,dof,endwhile,halfs,hist,iff,nd,od,uint`

modules/calib3d/src/chessboard.cpp

@@ -119,7 +119,7 @@ cv::Mat findHomography1D(cv::InputArray _src,cv::InputArray _dst)
     cv::Mat b = cv::Mat::zeros(count,1,CV_64FC1);
 
     // fill A;b and perform singular value decomposition
-    // it is assumed that w is one for both cooridnates
+    // it is assumed that w is one for both coordinates
     // h22 is kept to 1
     switch(src_n.type())
     {