//read ffastq and rfastq files creating fasta and qual files.
//this function will create a forward and reverse, fasta and qual files for each processor.
//files has an entry for each processor. files[i][0] = forwardFasta, files[i][1] = forwardQual, files[i][2] = reverseFasta, files[i][3] = reverseQual
//read ffastq and rfastq files creating fasta and qual files.
//this function will create a forward and reverse, fasta and qual files for each processor.
//files has an entry for each processor. files[i][0] = forwardFasta, files[i][1] = forwardQual, files[i][2] = reverseFasta, files[i][3] = reverseQual