dimensionless_d must cast to double for some math expressions

CMakeLists.txt

corsika/detail/framework/utility/CorsikaFenvFallback.inl

corsika/detail/framework/utility/CorsikaFenvOSX.inl

corsika/detail/modules/tracking/TrackingLeapFrogCurved.inl

corsika/framework/core/PhysicalUnits.hpp

corsika/framework/random/RNGManager.hpp

corsika/framework/units/io.hpp

corsika/framework/units/io_output.hpp

corsika/framework/units/io_output_eng.hpp

corsika/framework/units/io_symbols.hpp

corsika/framework/units/other_units.hpp

corsika/framework/units/physical_constants.hpp

corsika/framework/units/quantity.hpp

corsika/framework/units/quantity_io.hpp

corsika/framework/units/quantity_io_ampere.hpp

corsika/framework/units/quantity_io_becquerel.hpp

corsika/framework/units/quantity_io_candela.hpp

corsika/framework/units/quantity_io_celsius.hpp

corsika/framework/units/quantity_io_coulomb.hpp

corsika/framework/units/quantity_io_dimensionless.hpp