core

#### 项目介绍
可视化组件核心包

RoadMap

- [x] core implements
- [x] widget
- [x] factory
- [x] registry
- [x] service
- [x] injector
- [ ] httpclient TODO: 浏览器兼容性
- [x] decorators
- [x] @Widget()
- [x] @Inject()
- [ ] testing
- [x] registry
- [ ] factory
- [ ] widget
- [ ] working stuff for widget library:
- [x] definition cli
- [ ] workspace cli
- [ ] build cli
- [ ] docs
- [ ] usage
- [ ] widget extension
- [ ] engineering for Typescript
- [ ] engineering for Javascript
- [ ] engineering load-on-demand widget-api for browser
- [ ] platform
- [ ] offical definition schema
- [ ] independent schema project
- [ ] independent cli project
- [ ] definition parser (https://github.com/BigstickCarpet/json-schema-ref-parser)
- [ ] definition validation (https://github.com/epoberezkin/ajv)
- [ ] definition instanciator (https://github.com/tomarad/JSON-Schema-Instantiator)
- [ ] definition test editor (http://makinacorpus.github.io/ngx-schema-form/dist/ngx-schema-form)