%BFT_NO_LINES Set the number of lines that will be beamformed in parallel.%   After calling BFT_INIT, the number of lines that are beamformed in %   parallel is 1. If the user wants to beamform a whole image in one %   command, he/she must set the number of lines, and then specify the%   focal zones for each of the lines.%%USAGE  : bft_no_lines(no_lines)%%INPUT  : no_lines  - Number of lines beamformed in parallel%%OUTPUT : None%%VERSION: 1.0, Feb 10, 2000 Svetoslav Nikolovfunction bft_no_lines(no_lines)bft(3,no_lines)