Moving the box execution from lpel back to snet-rts and add new lpel_hrc

- Moving box execution from lpel back to snet-rts
   + Task migration has been integrated
   + Bee-hive integration is on-progress
- Add new lpel_hrc
   + old lpel is now called lpel_decen (decentralised lpel)
   + lpel_hrc (hierarchal lpel employed the central Q approach)

- Updating this version of lpel needs to update snet-rts to be synchronised