They are symlinks, and git symlinks do not work in Windows.

- CMake 3.12.4
- Conan 1.18.0

Implementation adapted from
http://shuhrat.github.io/programming/git-lfs-tips-and-tricks.html

Cleanup and fixes in Documentation

[cmake] no check of pch_defines if ccache < 3.2.5

Update CMake docs and bump minimum version

This automatically reruns CMake when new files are added.

On Ubuntu 18.04 the systems cmake package is at version 3.10 which
is too old.

Add THM Benchmark of consolidation around a point heat source to documentation.

Condensed constructDofTable() of some process classes

Time dependent heterogeneous parameter implementation

[StaggeredScheme] Replaced the duplicated part from ThermoMechanicalPhaseFieldProcess::constructDofTable

RichardsMechanics: mass lumping