This fixes a lot of issues and adds new features so here we go:
* Fixed access issues with the internal c_structure of the Packet class
* Fixed issues with the `ArrayField` not properly configuring the internal c_structure
* Cleaned up unittest tests
* added the following fields: `IntField8`, `IntField16`, `IntField32`, `IntField64`, `FloatField`, `DoubleField`, `LongDoubleField`, `BoolField`, `FlagField`
* Updated documentation! [Check it out](http://concorde.readthedocs.io/en/v0.1.2/)