Merge remote-tracking branch 'vovythevov/FixLinuxAnimationImport' into next

* vovythevov/FixLinuxAnimationImport:
  Fix UNIX animation import
Saving a node without a storage node fails
Merge branch 'save-node-with-no-storage' into next

* save-node-with-no-storage:
  Saving a node without a storage node fails
Uniformize input and output directories throughout modules

By using settings, we can uniformize the use of "Bender" directories
in the application. This is a major help in the workflow as will stop the
user to have to change directory every time something needs to be saved.

First, the settings are set in the BenderWelcome if they don't already
exist. This helps to have consistent behavior even if it's the first time
the application is started.
In BenderSampleData, the InputDirectory setting is used to know where the
data can be downloaded.
Finally in the workflow (FEM Workflow), all the loading/saving was
customized to use the InputDirectory/OutputDirectory setting.
Merge branch 'BenderDirectorySetting' into next

* BenderDirectorySetting:
  Uniformize input and output directories throughout modules
Fix SOFA build on mac

CMake can find more than 1 OpenGL library which was not correctly handled.
Fix loading labelmap

Fix the applyLabelmap function so it tries to create a labelmap from the
volume no matter what.
Merge branch 'BenderDirectorySetting' into next

* BenderDirectorySetting:
  Fix loading labelmap
Simplify LabelMapField

Don't expose origin nor spacing to Cleaver internals.
It does not handle those very well.
Add unit test skeleton for LabelMapField
Release memory when no longer needed in CreateTetrahedralMesh
Force the update of Cleaver
Add SaveLabelImages to CreateTetrahedralMesh for debugging
Merge branch 'improve-create-tetrahedral-mesh' into next

* improve-create-tetrahedral-mesh:
  Add SaveLabelImages to CreateTetrahedralMesh for debugging
  Force the update of Cleaver
  Release memory when no longer needed in CreateTetrahedralMesh
  Add unit test skeleton for LabelMapField
  Simplify LabelMapField
  Fix SOFA build on mac