[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.
Add eigen include to system includes if found.
If using lis, add path to system includes by default.
Merge pull request #505 from endJunction/GlobalNumericsConfig

Global numerics config
Merge pull request #511 from endJunction/EigenSystemInclude

Eigen/LIS system includes on top level.
Added PETScWallClockTimer
Changed classes of RunTime and CPUTime
More changes for CPUTime and RunTime
Removed changes in CLI
Recovery CLI/CMakeLists.txt
Changed a variable name for classes RunTime and CPUTime
Minor changes afer rebasing onto ufz/master
Uniform copyright year in one file
Changed one word in comment
Removed class PETScWallClockTimer and minor changes in cmake files
Fixed compiler error and other minor changes
Change one option for cmake.