Analysis returned lines about chess-cli

[tage64]

With aa545c8 it is possible to type:

analysis show 1

to only get the best line. Or analysis show 3 to get the 3 best lines.

Note though the maximum number of lines is the number given to analysis start (which defaults to 5). So if you want to get the 10 best lines you must type:

analysis start -n 10

when starting the analysis. This is how the UCI protocol works, we specify the number of moves when starting the analysis.