Expand `Examples` in the `Sway Book`

[Braqzen]

Summary

The original issue mentioned some points that could be added to the book. After some comments a suggestion came in for separating the book into components and thus this PR is meant to introduce a "How to Sway" esque book which acts as a lookup table for the language and common operations.

Heavy work in progress. Lots of incomplete sections. Lots of copied sections from the current book that have not been reworded. Lots of missing sections. Lots of refactoring and extracting code from files into a separate directory is needed.

Closes #2443