Test for loading substitution matrices available in BioShell.
The progam reads a substitution matrix (NCBI file format) and prints in back on the screen. If no input file is given, the program lists all the substitution matrices found in this BioShell distribution.
User can manually install custom matrices just by copying them to: data/alignments/ directory
USAGE: ex_NcbiSimilarityMatrixFactory BLOSUM45.txt