Work on Architecture and UI chapters

This is how much I managed to write so far. Next week I will take a break from TVB, but after that, if it is not too late and it is still needed, I might contribute further. I know my text is no quality to directly appear in an article, but hopefully it will provide a good raw form, for you to work with.

- I've added some screenshots from TVB application (not necessary that all of them will remain included in the final version of this article).
- One architectural drawing is included. This image is almost the same as published in Paula's article earlier this year. Most probably we need to refer to that article.... but I do not know exactly how, so I leave it to you.
- I added one table enumerating trait-attributes currently supported by TVB. I could not correctly refer to that table (so a ?? appears in the final PDF). Please help in correcting that.
- There is a note, suggesting to include the code for Fast ICA adapter. I found it a bit too long to place it here, but I might be wrong.....