Upgrade vtk.js version to 20.1.0#155

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dougyau wants to merge 2 commits intoOHIF:masterfrom

dougyau:update-vtkjs

Commits on Oct 19, 2021

check if rotateFromDirections exists before setting normal, origin, etc. in updatePaintbrush

tamaynard
authored and
dougyau
committed
Upgrade vtk.js version to v20.1.2
dougyau
committed