No warning given for saturating/overflowing score #94
Description
In full alignments for long sequences (such as COVID), the score reported can be inaccurate if it reaches the maximum value of a i16 (32767). In this case, SSW reports the score as 32767 without any warning or indication that the maximum score was reached. A warning to the user could be helpful in this case, since it might suggest the need for a different scoring scheme.