0026467: Configuration, genproj.tcl - restore generation of Code::Blocks and XCode...

0026467: Configuration, genproj.tcl - restore generation of Code::Blocks and XCode project files

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".