add start of rofiworld import

src/algo/src/misc.cpp

src/filein/include/filein/json_loader.hpp

src/filein/include/filein/module_loader.hpp

src/filein/include/filein/rofiworld_loader.hpp

src/filein/src/json_loader.cpp

src/filein/src/module_loader.cpp

src/filein/src/rofiworld_loader.cpp