Merge DomainInformation and SubGrid

 - move Selection to PMacc
 - merge DomainInformation into SubGrid
 - remove SimulationBox from SubGrid
Add documentation for SubGrid
Fix SubGrid (no return of references)

 - Fix SubGrid usage in examples
Update examples for new SubGrid
Remove additional brackets for size
Fix globalOffset name and examples

 - renamed updateGlobalOffset
 - fix DIM3 to simDim in examples
Fix DIM3 to simDim on OnePS
Fix DIM3 to simDim in SingleParticlesTest
Merge pull request #537 from f-schmitt-zih/topic-mergeDomainInfoSubGrid

Merge DomainInformation and SubGrid