This adds another option and a mode flag in dmftproj:
* third value in window line defines now the mode
* new option to provide an energy window where all
bands which are within the window (at least at one k-point)
are taken into account for the projectors.
* updates to documention to reflects those changes
* moved the plovasp C++ code to c++/triqs_dft_tools/converters/vasp
* added global header triqs_dft_tools/triqs_dft_tools.hpp
* python dir based on single cmakelist file
* registered C++ tests for plovasp
* corrected imports for py3 tests for plovasp
* corrected block order in sigma_from_file and srvo3_Gloc
* exchanged ref files for sigma_from_file, srvo3_Gloc, SrVO3.ref.h5
* moved vasp converter bash scripts from dir shells to bin dir
