Update list for Windows Std Serial Comm Lib for C/C++
Added SioCRC16 and SioCRC32 functions to compute 16-bit CCITT CRC or 32-bit CCITT CRC; Added SioCountWait function that waits for a specified number of incoming bytes before returning; Added Visual Studio 2013 and 2015 support. Added makefiles for GCC, LCC, and Digital Mars C compilers.
Added SioLRC function that computes the "longitudinal redundancy check"; added additional error checks to SioQuiet, and SioWaitFor; SioSetInteger no longer requires an open port for global (all ports) parameters; Modified SioReset to make it more tolerant opening slow virtual ports.
Added functions SioQuiet() and SioWaitFor().