removed bug. Total dist will be computed only when the solve() function gets removed from undulator.cpp

Switch 'ENABLE_OPAL_FEL' added to enable OPAL FEL. OPAL FEL requires
MITHRA. MITHRA will be searched for in the usual directories and paths.

- added again, there are some problems with the module provided by cmake

This reverts commit 69985bb1.

modified:   CMakeLists.txt
deleted:    CMakeModules/CCSEOptions.cmake
deleted:    CMakeModules/FindCCSE.cmake
modified:   cmake/OPALConfig.cmake.in
modified:   ippl/CMakeLists.txt
modified:   ippl/test/AMR/amrex-only/CMakeLists.txt
modified:   ippl/test/AMR/boxlib-amr/CMakeLists.txt
modified:   ippl/test/AMR/ippl-amr/CMakeLists.txt
modified:   ippl/test/AMR/ippl-bunch/CMakeLists.txt
modified:   src/CMakeLists.txt
modified:   tests/CMakeLists.txt

Remark: Following directories are still using BoxLib instead of AMReX:

- src/ippl/test/AMR/boxlib-amr
- src/ippl/test/AMR/boxlib-only

Updated files:

modified:   CMakeLists.txt
modified:   CMakeModules/CCSEOptions.cmake
modified:   CMakeModules/FindCCSE.cmake
modified:   ippl/src/AmrParticle/AmrParticleBase.hpp
modified:   ippl/test/AMR/AmrOpal.cpp
modified:   ippl/test/AMR/AmrOpal.h
modified:   ippl/test/AMR/AmrOpal_F.h
modified:   ippl/test/AMR/CMakeLists.txt
modified:   ippl/test/AMR/Distribution.h
modified:   ippl/test/AMR/H5Reader.cpp
modified:   ippl/test/AMR/Solver.cpp
modified:   ippl/test/AMR/Solver.h
modified:   ippl/test/AMR/helper_functions.h
modified:   ippl/test/AMR/ippl-amr/AmrParticleBase.h
modified:   ippl/test/AMR/ippl-amr/AmrParticleBase.hpp
modified:   ippl/test/AMR/ippl-amr/ParticleAmrLayout.h
modified:   ippl/test/AMR/ippl-amr/ParticleAmrLayout.hpp
modified:   ippl/test/AMR/ippl-amr/testAmrPartBase.cpp
modified:   ippl/test/AMR/ippl-amr/testInitialBox.cpp
modified:   ippl/test/AMR/ippl-amr/testNewTracker.cpp
modified:   ippl/test/AMR/ippl-amr/testPerformance.cpp
modified:   ippl/test/AMR/ippl-amr/testPlasma.cpp
modified:   ippl/test/AMR/ippl-amr/testScatterAMReX.cpp
modified:   ippl/test/AMR/ippl-amr/testTagging.cpp
modified:   ippl/test/AMR/ippl-bunch/testAdapterPattern.cpp
modified:   src/Amr/AmrBoxLib.cpp
modified:   src/Amr/AmrBoxLib.h
modified:   src/Amr/AmrBoxLib_F.h
modified:   src/Amr/AmrDefs.h
modified:   src/Amr/BoxLibLayout.h
modified:   src/Amr/BoxLibLayout.hpp
modified:   src/Amr/BoxLibParticle.h
modified:   src/Amr/BoxLibParticle.hpp
modified:   src/Classic/Algorithms/AmrPartBunch.h
modified:   src/Main.cpp
modified:   src/Solvers/BoxLibSolvers/FMGPoissonSolver.cpp
modified:   src/Solvers/BoxLibSolvers/FMGPoissonSolver.h
modified:   src/Structure/FieldSolver.cpp
modified:   src/Track/TrackRun.cpp
modified:   src/Track/TrackRun.h

- prefer static library

ParallelTTracker. Particle-Matter interaction doesn't work either at the moment.

I hope that I didn't create too much of a mess when merging!

- simple H5hut version check added
- set indentation to 4 spaces

new file:   CMakeModules/CCSEOptions.cmake
new file:   CMakeModules/FindCCSE.cmake