KGD v1.0.0

There have been some structural changes to the code, in part to simplify use of objects created during the analysis.

Changes to code mean that some scripts that used v <1 may not work with v1. Specifically any code that referred to depth.orig will need modified (now use depth instead of depth.orig), and code referring to data frames created in the pedigree analysis (pedinfo, FatherMatches, MotherMatches and BothMatches) will now need to retrieve those objects from the list that is returned (called PedResults if run when sourcing the pedigree code with functions.only set to FALSE).

Pedigree analysis can be run with GBSPed function.