added core audio format to ita_read

kernel/DataAudio_IO/ita_read/ita_read_caf.m

+function result = ita_read_caf(filename,varargin)
+%ITA_READ_FLAC - Read Free Lossless Audio Codec Files
+%   This function is completely based on the MATLAB audioread.
+%
+%   It returns a itaAudio object containing the files data and metadata.
+%
+%   See also ita_read, ita_write, audioread.
+
+% <ITA-Toolbox>
+% This file is part of the ITA-Toolbox. Some rights reserved.
+% You can find the license for this m-file in the license.txt file in the ITA-Toolbox folder.
+% </ITA-Toolbox>
+
+
+%% Return type of data this function can read
+if nargin == 0
+    result{1}.extension = '.caf';
+    result{1}.comment = 'Core Audio Format Files (*.caf)';
+    return
+end
+
+    
+if ~exist(filename,'file')
+    error('ITA_READ_CAF: File does not exist');
+end
+
+try
+    [data,fs] = audioread(filename);
+    result = itaAudio;
+    result.samplingRate = fs;
+    result.timeData = data;
+catch
+    error('ITA_READ_CAF: Something went wrong');
+end
+    
+end
+