MoFEM version v0.7.21 and users fracture module v0.9.34

[Lukasz Kaczmraczyk]

New fracture module and core library are released. As usual, in the new versions, you find many small changes related to code error handling and code formatting.

Key changes:

MoFEM has methods dedicated to loop over finite elements, entities and does on the entities. In this release, small changes to those methods are introduced which going to improve efficiency and simplify implementation.

Changes in core library:

• In the CutMeshInterface algorithm to improve robustness
  
• In the FieldBlas generalising code and adding arbitrary operation on two fields and adding coping and scaling from one field to another.
  
• Change structure name EntMethod to DofMethod (old name is deprecated).
  
• Add struct EntityMethod which enables to loop over entities on the field directly.
  
• Changes in Dirichlet boundary conditions allowing for adding boundary conditions from blocksets. This is introduced by Karol to read meshes from Abaqus and SimpleWare.
  
• Tools which allow saving data from filed into mesh tags written by Karol.
  
• Many updated in FTensor library to synchronise resent developments with MoFEM.
  
• Change how tensor to vectorial filed is returned, now it FTensor::Tensor1<FTensor::PackPtr<double*, DIM>, DIM>
  

In fracture module:

• Changes in constructing cutting surface to improve robustness 
  
• Changes in example input config files for a brick slice and brick with a half keyway for crack propagation calculation