[WIP] Pipelined implementation of HEP.TrkX GNN v1
Pipelined version of HEP.TrkX GNN v1. FastML Presentation by @belloworld: https://indico.cern.ch/event/838816/contributions/3520647/attachments/1889905/3116489/hls4ml_Meeting_August_2_2019.pdf
Pipelined version of HEP.TrkX GNN v1. FastML Presentation by @belloworld: https://indico.cern.ch/event/838816/contributions/3520647/attachments/1889905/3116489/hls4ml_Meeting_August_2_2019.pdf