Added smiles output

[javadev]

No description provided.

[javadev]

@me It is better to use not count but new index variable

[javadev]

Fixed.

[javadev]

I changed key to the -smi/--smiles

usage: java -jar MAYGEN.jar -f <arg> [-v] [-t] [-d <arg>] [-m] [-smi]

Generates molecular structures for a given molecular formula.
The input is a molecular formula string.

For example 'C2OH4'.

If user wants an output file, the directory is needed to be specified.
It is also possible to generate SMILES instead of an SDF file, but it will
slow down the generation time. For this, use the '--smiles' option.

 -f,--formula <arg>   formula (required)
 -v,--verbose         print message
 -t,--tsvoutput       Output formula, number of structures and execution
                      time in CSV format.In multithread, the 4th column in
                      the output is the number of threads.
 -d,--filedir <arg>   Store output in given file
 -m,--multithread     Use multi thread
 -smi,--smiles        Store output in SMILES format in given file

Please report issues at https://github.com/MehmetAzizYirik/MAYGEN