Added build directory to those ignored by flake8
Pass on __init__ attribute assume_local's value
Simplify methods and use lamba expressions
Updated documentation on Field class, added new doc_text option, this is intended to replace help_text
Updated doc gen to use new doc_text attribute on fields
Major update of documentation.

Setup structure of documentation and added all placeholders for content to be completed.

Updated resources fields to match latest code.
Updated overview of creating resources