Multidevice ASIO output plugin for WinAMP

// Modified without permission by Domagoj �ari� (dsaritz at gmail . com ).
// 02/10/09

Change list:
- alloc.cpp � changed it to use Windows XP�s low fragmentation heap and call GetProcessHeap() only once.
- file.cpp - refactored it to no longer require manual initialization of STD handles via _init_file().
- initterm.cpp � refactored it to no longer use a dynamically allocated at-exit function pointer list as it still used a fixed size for the list; replaced the two index variables with a single pointer.
- crt0t*.cpp and libct.h � made the changes required by the changes to the above two files.
- math.cpp � added the ldiv() function.
- memory.cpp � added a (naive �implementation�) of _resetstkoflw() required by alloca(); added the __sse2_available DWORD required by Microsoft asm memory routines; disabled the original �manual� memory routines in favor of Microsoft�s asm optimized ones (this slightly increases the binary but I consider it well worth it).
- newdel.cpp � minor code reuse refactoring.
- sprintf.cpp � added minor sanity checks and the wide version of _snprintf.
- string.cpp � added the _String_base::_Xlen(), _String_base::_Xran(), _String_base::_Xinvarg() functions required/used by Dinkumware�s std::string implementation to report/handle errors.
- added memory_s.h and string_s.h with implementations for some of Microsofts �secure� CRT functions.
- .vcproj - converted to a VC9.0 project, tweaked optimization switches and added MASM support and Microsoft P4 memory routines .obj files and asm sources.
- throughout the files:
  - added __declspec(selectany) specifiers to aid the linker in removing unused objects.
  - added warning disabling pragma directives.
  - added #pragma function() directives to enable compiling with �Enable Intrinsic Functions� set to �On�.
  - did various minor stylistic changes and refactorings.