Restore XCode generator.
Add missing dependencies to EXTERNLIB.
genproj.tcl - remove OS:mkdir() - duplicate of wokUtils:FILES:mkdir().
genproj.tcl - use osutils:usedOsLibs() for Code::Blocks.
src/OS - remove unused :LinksoWith() and :CompileWith().
adm/CMPLRS - remove unused CSF_ entities.
Remove config.h related code.
Add executable flag to codeblocks.sh and draw.sh scripts.
Setup ARCH variable using $tcl_platform(pointerSize).
wokdep:SearchLib() - use $tcl_platform(os) instead of $tcl_platform(platform)
for checking Linux-specific library paths.
wokdep:SearchFreeType() - fix misprint in ft2build.h header file name.
wokdep:SaveCustom() - export SHORTCUT_HEADERS to "custom.sh" as well, not only to "custom.bat".
Debug code enabled with OCCT_DEBUG macro corrected for compiling with new handles.
QANCollection_Handle.cxx simplified so as to avoid need of using /bigobj option when building by Visual Studio; templates of project files, CMake projects, and test perf fclasses handle corrected accordingly.
Script genproj corrected to recognize VTK and to build DRAWEXE as executable (rather than DLL).
WOK scripts used in generation of MSVC projects are put to adm/genproj.tcl
Batch script genproj.bat added, replacing 'wgenproj' command of WOK.
WOK tool for configuring custom.bat is also copied; it is called by genproj if custom.bat does not exist
Environment variable SHORTCUT_HEADERS can be defined in custom.bat to have headers put in inc just shortcuts to actual headers, instead of copies.
Corresponding option "copy OCCT short-cut headers instead of original one to inc folder" is added to genconf dialog
