Merge branch 'feature/local_basis_cache' into 'develop'

examples/CMakeLists.txt

examples/init/ellipt.dat.3d

examples/init/stokes.dat.2d

examples/stokes3.cc

src/amdis/LocalBasisCache.hpp

src/amdis/LocalBasisEvaluatorCache.hpp

src/amdis/assembler/ConvectionDiffusionOperator.hpp

src/amdis/assembler/FirstOrderTestDivTrialvec.hpp

src/amdis/assembler/FirstOrderTestGradTrial.hpp

src/amdis/assembler/FirstOrderTestPartialTrial.hpp

src/amdis/assembler/FirstOrderTestvecGradTrial.hpp

src/amdis/assembler/SecondOrderDivTestvecDivTrialvec.hpp

src/amdis/assembler/SecondOrderGradTestGradTrial.hpp

src/amdis/assembler/SecondOrderPartialTestPartialTrial.hpp

src/amdis/assembler/StokesOperator.hpp

src/amdis/assembler/ZeroOrderTest.hpp

src/amdis/assembler/ZeroOrderTestTrial.hpp

src/amdis/assembler/ZeroOrderTestTrialvec.hpp

src/amdis/assembler/ZeroOrderTestvec.hpp

src/amdis/assembler/ZeroOrderTestvecTrialvec.hpp