v1.4.0 (Parallel surface adaptation)

This release introduces parallel surface analysis and adaptation.

• Surface adaptation will be activated by default. In order to switch it off, the parameter -nosurf (or PMMG_IPARAM_nosurf in the API) needs to be set.
• The Hausdorff parameter -hausd(or PMMG_DPARAM_hausd in the API) needs to be always set to a meaningful value (even for flat surfaces) in order to get correct metrics on surfaces.
• User-provided normal vectors on boundary points are currently not supported.
• Open boundaries are currently not supported with distributed input.