Adjusted testhelper for the hydraulic boundary location calculations on the grass cover erosion outwards failure mechanism: - Introduced function to retrieve all the hydraulic boundary calculations that have an output -- Applied where necessary WTI-1570
Adjusted the NormChangeHandler tests: - HBL outputs of the GrassCoverErosionFailureMechanism HBL calculations are now cleared instead of the calculations nested by the hydraulic locations WTI-1570