add upstream metadata

Reference:

 - Author: >

    G. Gremme and V. Brendel and M.E. Sparks and S. Kurtz

   Title: "Engineering a software tool for gene structure prediction in higher organisms"

   Journal: "Information and Software Technology"

   Year: 2005

   Volume: 47

   Number: 15

   Pages: 965-978

   DOI: 10.1016/j.infsof.2005.09.005

   URL: https://www.sciencedirect.com/science/article/abs/pii/S0950584905001345

Registry:

 - Name: bio.tools

   Entry: genomethreader

 - Name: OMICtools

   Entry: OMICS_07783

 - Name: SciCrunch

   Entry: NA

 - Name: conda:bioconda

   Entry: genomethreader