clean up exception message
fix unit tests when DEBUG_SVL is defined
improved sv graph debugging options
add extra debug checking
add chromosome id map to improve output of DumpSVLoci
MANTA-28 subset of branch which should have no impact on result
MANTA-28 fix CIEND tag to match work with new END tag adjustment
MANTA-28  handle multiple assembly candidates per low-res proposal
MANTA-28 reduce minimum size of input candidates and handle small events more efficiently
MANTA-28 finish roughing out basic indel+soft-clip based local assemblies
MANTA-28 improve debug logging and fix spelling
MANTA-28 Add new clang warnings to config and clean warnings from build
MANTA-28 improve SV-graph debug logging detail
MANTA-28 add unit test and fix for tricking overlapping node error from m28 branch test
MANTA-28 enhance debug node overlap checks
MANTA-28 add unit test and fix for another graph build failure case from m28 branch
MANTA-28 don't count reads which are anomalously small as graph evidence
MANTA-28 print CIGAR for all small indel types
MANTA-28 format refresh
MANTA-28 debug log improvements and small SV output candidate fix