Sweeping !38095 from 21.0 to master. New TFCSEnergyInterpolationPiecewiseLinear class for piecewise linear interpolation

Atlas Nightlybuildrequested to merge
cherry-pick-c591893349f-master into master

New TFCSEnergyInterpolationPiecewiseLinear class for piecewise linear interpolation

See merge request !38095 (merged)

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