pyp5-examples

Experiments with py5, I'm not sure how much further I'm going here (my python is v. rusty anyways). Idea is excellent, and I may need to to explore jupyter notebooks as a new programming paradigm. However things could be so much better with a radical re-write of processing.

Particular irritations:-

1. Processing map is not polyglot friendly (should be remap or similar).
2. PApplet is behemoth (py5 and ruby-processing projects have at least moved noise implementation out).
3. PVector is a mess, overloading Vec2D and Vec3D functionality (I'm happy with my java extensions here).
4. Processing4 is even more patched up than earlier versions, dead code and MacOS fixes abound.
5. Inner classes are a mixed blessing (fortunately there's a meta-programming workaround for ruby-processing).

I'm not sure p5 static mode is good idea, apart from being terse, python mode should be pythonic. Which is why I will concentrate on class mode, or possibly module mode as seems suited to jupyter notebooks.