Support .inoz sketches

[lmihalkovic]

Arduino builder has a year old branch that was experimenting with single file sketches. I proposed the idea 2 years ago and implemented it in the IDE and via a custom builder based on the fixed up original java builder (1.6.xx codebase).

Proposed scope

• .inoz single file (the suffix used in builder)
• a libraries folder with all the dependent libraries in zip/tgz format
• a shiny new icon (just a new color maybe) to make these stand out
• add a 'Tools/Email sketch' to send them around?
• add a 'Tools/Copy to Create'?

[lmihalkovic]

A couple bugs left (like the editor title which is incorrectly assigned from a call to getFile().getParent())

The point is that it just works

... and aside from the usefulness I see, I think it also delivers a stronger branding message when looking at the filesystem. people keeping their 'archived' projects as .inoz would never have to wonder what these are or how to figure out what is missing to run them