Couplers to use features in to v2.0

[dcelisgarza]

https://github.com/dcelisgarza/EasyDD/blob/d2bf63d3bae7f3a89a30fde3b7c65295784cd138/src/wip/DanielCelisGarza/Accurate evaluation of dislocation tractions/HeadVsFEM_ReactionForce.m#L107-L107