Add an option to resume an ongoing annotation

[kalon33]

Dear Raphael,

Is it possible to implement a way to resume an ongoing annotation? Indeed, when annotating large VCF files, we sometimes have to stop the process and restart it after, and it would be great not to have to restart it from scratch, looking at the output for where we stopped (for both .txt and .vcf outputs).

Could you please implement that?

Thanks.