Windows and Windows CE port of the Stanford IBE library

I recently ported the Stanford IBE library to Windows and Windows CE.

My Windows port builds natively using the MSVC++ development tools, while the one provided at the Stanford IBE page was cross-compiled for Windows with a Linux port of mingw and only includes the application binaries.

Note: On Windows CE the generation of the Solinas prime in the function IBE_setup (file ibe_lib.c) usually takes a couple of seconds.