Moved ExpToCasExe and its DLL to new module - DETools
Created new module - DETools to keep tools to DE
Changed definition of main of ExpToCasExe to not const parameter
FlexLexer.h moved to general location into TKernel
Added script adm/scripts/macos_build.sh and template macos_custom.bat.template
intended for automating building routines targeting macOS platform.
Added script adm/scripts/ios_build.sh and template ios_custom.bat.template
intended for automating building routines targeting iOS platform.