* Move RtlRunOnce functions from kernel32_vista to rtl_vista and export them from ntdll_vista
* Move condvar.c and srw.c from ntdll_vista to rtl_vista
* Move ntdll_vista build script to a subfolder of ntdll
The RtlRunOnce functions are taken from wine, completely unmodified.
The code that was in kernel32_vista had change that used a global keyed_event handle, but was never initialized, so we were still passing NULL thus using the global ExpCritSecOutOfMemoryEvent.
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
