Uv map node - using in edit mode

Слиты nikitronn запросил слияние uv_map_node_fixing в master

Created by: Durman

Addressed problem description

https://user-images.githubusercontent.com/28003269/108602666-a25d4700-73bc-11eb-8f38-71fbb3039f7f.mp4

Preflight checklist

  • Code changes complete.
  • Code documentation complete.
  • Manual testing done.
  • Ready for merge.