Fixed default struct initialization because I write C++ normally
Fixed bug where uniproc_win64.c would not correctly append arguments to the command-line string
Modified uniproc_create_process signature to take a command and a list of arguments
Updated uniproc_win64.c to terminate the process before closing the handles
Updated uniproc_win64.c to convert the command and list of arguments into a command-line string
