add a new function:
hra_math.utils.io_utils.shuffle_file(_file, headers_count=0,
output_dir=None, shuffled_prefix='S_')
to shuffle of a text file by use of numpy.random.permutation function

add a new function:
hra_math.utils.array_utils.shuffle_array(array, shuffled_indexes=None,
ret_shuffled_indexes=False)
to shuffle a numpy array by use of numpy.random.permutation function

add ability to generate poincare plot descriptors for shuffled files, 
a shuffled file is generated based on a source data file into output_dir
location;
a new boolean poincare plot parameter is added - shuffle_data with
default value False,
if shuffle_data equals True then shuffle of files is activated