[PL] Add mesh node ids for BoundaryCondition.
[PL] Initialize node ids vec in boundary conditions.
[A] Add numerics configuration in own header.
[A] Include numericsConfig.h
[A] Add ProjectData::processBuilder().

The GroundwaterFlowProcess is taken out because it does not exists for now.
This is an example.
[A] Call project.buildProcess from main.
Merge branch 'GlobalNumericsConfig' into develop
Merge branch 'BC_searchNodes' into develop
[NL] Use MeshElement's dimenions and npoint in ShapeFunctions.
Merge branch 'NumLibShapeFunctions' into develop