Simplekit

Changed
- refactor objson module
- support for add attributes dynamically

Fixed
- add documents
- fix some bug

Changed
- use `type` factory instead of just compile code
- add new unittest
- fix dump bug
- rename project name to simplekit
- fix dump list object

Changed
- change dynamic class from dict to object
- escape keyword properties, add 'm' prefix.

Added
- init project