Misc. typos

Found via `codespell -q 3 -I ../opencv-whitelist.txt --skip="./3rdparty"`

modules/features2d/doc/read_file_nondiff32.pl

@@ -131,7 +131,7 @@ my $success_structured;
                   }
                   close $in2 or die "Can't close $filein: $!";
                 }
-                #find next else and interprete it
+                #find next else and interpret it
                 open(my $in3,  "<",  $filein)  or die "Can't open $filein: $!";
         $i3=1;
         $ifcount3=0;

modules/features2d/doc/read_file_score32.pl

@@ -119,7 +119,7 @@ my $is_a_corner;
                   }
                   close $in2 or die "Can't close $filein: $!";
                 }
-                #find next else and interprete it
+                #find next else and interpret it
                 open(my $in3,  "<",  $filein)  or die "Can't open $filein: $!";
         $i3=1;
         $ifcount3=0;