Fixed read-bioinfo-metadata module

[svarona]

• Made long table to be written in --outdir. Fix issue Longtable.json should be created in output-directory #351
• Fixed module to find files not containing sample_name in filename (viralrecon_filepath_mapping_stats, viralrecon_filepath_summary_mqc, viralrecon_filepath_variants_long_table, viralrecon_filepath_workflow_summary)
• Added year to --outdir to write files
• Added batchID/date to filename instead of current date for --oudir and --batchdir
• Added current date for tables written in analysis_results
• Test whether variants_long_table and bioinfo_lab_metadata already exist and try to merge new samples, ignores samples already existing that contain exactly the same info.
• Write long table only with samples in the COD to COD folder