Standard_Atomic, prefer gcc built-ins rather than WinAPI calls (revert previous change of order)
Raise compiler error if no implementation found for atomic operations.
Add new draw command for testing this bug
Fix for compilation with TBB disabled
Adding CSF_TBB_INCLUDES macro in edl files
Correction of *.edl files
Update of EXTERNLIB files with CSF_TBB
Adding EXTERNLIB file
Commit details:
1) in OSD_PerfMeter, use static functions of OSD_Chronometer class for time measurements instead of specific code to avoid incorrect results on CentOS (due to wrong valus of CLK_TCK);
2) changed definition of OSD_PerfMeter from .c to .cxx to avoid problems with C-functions;
3) fixed OSD_PerfMeter.h for building on Unix systems;
4) removed platform-specific #defines;
5) added test case for OSD_PerfMeter as bugs fclasses bug23237;
6) Removed DebugTools package (duplicates OSD_PerfMeter)
7) Avoid compiler (GCC) error casting BRepPrimAPI_Make* instances to TopoDS_Shape
