Move SVcallers into the toplevel extensions directory

...umc/sasc/biopet/extensions/breakdancer/breakdancer2vcf.py

...lumc/sasc/biopet/extensions/breakdancer/Breakdancer.scala

...asc/biopet/extensions/breakdancer/BreakdancerCaller.scala

...asc/biopet/extensions/breakdancer/BreakdancerConfig.scala

...c/sasc/biopet/extensions/breakdancer/BreakdancerVCF.scala

.../scala/nl/lumc/sasc/biopet/extensions/clever/Clever.scala

.../nl/lumc/sasc/biopet/extensions/clever/CleverCaller.scala

...in/scala/nl/lumc/sasc/biopet/extensions/delly/Delly.scala

...la/nl/lumc/sasc/biopet/extensions/delly/DellyCaller.scala

.../scala/nl/lumc/sasc/biopet/extensions/pindel/Pindel.scala

.../nl/lumc/sasc/biopet/extensions/pindel/PindelCaller.scala

.../nl/lumc/sasc/biopet/extensions/pindel/PindelConfig.scala

...n/scala/nl/lumc/sasc/biopet/pipelines/yamsvp/Yamsvp.scala