GATKReducedReads, SamtoolsViewSplitChr, GATKHC, Merged TargetInterval_list, GATKVRecal, MostCompleteFileBAM/VCF

- Added GATKReduceReads to default flow
- Removed SamToolsViewSplitChromosomes, use GATK "-L" parameter across BAMs instead
- Add function to check and create merged targetfileInterval_list for use with GATK "-L" when required
- Added check for infile existence in GATKHC, since not all contigs might have identified variants
- Separated GATKVRecal into sequentiell SNP and INDEL processing
- Added MostCompleteBAM/VCF to sampleInfo.yaml file for use with IGV
- Updated dbsnp to v.138
Uppdated some Annovar databases, added -exomesplicing parameter