Added NSStatusItem Example

Included NSStatusItem example, from an old Google Code branch from
Massimo Valle

https://forum.xojo.com/3392-menulet-os-x-equivalent-of-windows-system-tr
ay/p1#p26826
Merge pull request #76 from eduo/master

Added NSStatusItem Example
Merge branch 'master' of https://github.com/macoslib/macoslib

Conflicts:
	Application/App.rbbas
	Application/MainMenubar.rbmnu
	macoslib.rbvcp