First release

1. Introduce UI component.
2. Introduce UI Editors:
   • CheckboxEditor: checks true or false.
   • ColorEditor: picks a color.
   • DateEditor: enters a date.
   • DateTimeEditor: enters a date and time.
   • TimeEditor: enters a time.
   • EnumEditor: selects an enum item from its enum type.
   • FilePickerEditor: picks a file from computer.
   • FolderPickerEditor: picks a folder from computer.
   • NumberEditor: enters a number with validation.
   • TextEditor: enters text.
   • SelectEditor: selects an item from a list.
   • ListEditor: a special editor that supports to represent a list of editors.
3. Introduce UI Containers:
   • GroupContainer: a component contains other components.
   • WindowContainer: contains other components and can display as a window.
4. UI implementation for WinForm.
5. Implementation for core features.
   • Manages config file in json format.
   • Saves or loads config data automatically.
   • Registers config type automatically.
   • Builds UI from config data.
   • Synchronizes UI components value with config data.