Final version of EUCANCan variant extraction and annotation tool

Summary
Identify the best solutions to replicate and align strategies for the calling and interpretation of somatic and germline variants (SNVs, indels, SVs and CNV) for a concordant and homogeneous sharing of genomic information across EUCANCan nodes. These strategies will be also aligned with current efforts to standardize protocols for genomic analyses in biomedicine (GA4GH and ELIXIR).