MPL: add d2Value to the Function property

Dmitri Naumovrequested to merge
endJunction/ogs:FunctionSecondDerivative into master
  • Small deduplication
  • ranges-v3 instead of std::range for consistency
  • d2Value implementation with tests
  1. Tests covering your feature were added?
  2. Any new feature or behaviour change was documented?
Edited by Dmitri Naumov

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