Automated IGV
- Adds IGV stage (automated with xvfb) and end-of-pipeline output splitting from split_trio_solo_variants.py
- Refactors and simplifies variant calling output files
- Removes old prioritisation NF process
- Merges variant_prioritisation_setup and variant_prioritisation workflows
- Uses watchPath/fromPath to pick up or wait for decipher file
- Adds missing test asset files
- Adds exit statements to IGV batch files so we don't need to send sigterms to IGV
- Fixes argparse in extract_solo_FAM_PRO_ID.py