Show all descriptions and alignments with maximum score

[krdav]

Clunky way of solving the request that I wrote about in this issue:
#37

Not suggesting this as the actual solution, but rather showing it so that it is clear what I am referring to in the issue. In a better solution the show_best option should probably be a boolean or yes/no and there is probably a more intelligent way of implementing it such that showhits and showalignments are not forced to be the same.

[krdav]

Update:
Instead of showing only top scoring sequences, I changed it such that it allows showing multiple levels e.g.
show_best=1 shows sequences with the highest score
show_best=2 shows sequences with the highest and second highest score
etc

[torognes]

Thanks for the suggested change to swipe. I haven't worked on the swipe code for a long time, but will try to find time to look at this soon.

[krdav]

Thank you so much!
I understand if you got other priorities, not working on the swipe code.
But Swipe just happen to be very fast - in my experience a lot faster than other SW tools/libraries.