Clean up funs, allow somatic only mode

• Modularise svParse.pl
• Allow Somatic only mode
• Annotate SVs with read depth information (e.g. CNV-Seq).
• Incorporate FREEC calls
• Mark potential FPs in sv2gene (low read depth ratio in DEL/DUP)

Allow genotype-specific filtering

o Now filter on specific genotype. E.g.-f st=1 selects for somatic tumour events
o Modularise caller script svParse.pl
o Clean up caller script
o Add function to test on the fly filtered data against a set of false positives -t