Adding some examples

[Menelion]

Thanks for your Windows API wrapper. Could you please add a couple exapmles of its implementation in Go? Thanks!

[xackery]

I know this is nearly a year old, but I have some examples I wrote up today on my fork. https://github.com/Xackery/w32/tree/master/example As I use each method I'll write examples as I test and improve the simplicity.