Reorganized sys functions

lib/sys/sys_windows.q

@@ -1,17 +0,0 @@
-write(fd Int, address Pointer, length Int) -> Int {
-	// out numberOfBytesWritten
-	// out overlapped
-	return kernel32.WriteFile(fd, address, length)
-}
-
-mmap(address Int, length Int, protection Int, flags Int) -> Pointer {
-	return kernel32.VirtualAlloc(address, length, flags, protection)
-}
-
-munmap(address Pointer, length Int) -> Int {
-	return kernel32.VirtualFree(address, length, 0x4000)
-}
-
-exit(code Int) {
-	kernel32.ExitProcess(code)
-}