If ANSI is available, position the cursor in column col and in row row
Legal ranges:
1 <= col <= 80
1 <= row <= 23 (Because of the status lines)
(1,1) is the top left corner of the screen
Note: Be aware that the user may have a different number of lines on his screen… if the user has 50 lines for exemple and that you do an ANSIPOS sentence to position the cursor on the 23rd line, the user will have a prompt in the middle of his screen…