Closes [UID-488](https://bonitasoft.atlassian.net/browse/UID-488)

Standard widget generation is now fully aligned with custom widget, and generate a zip file. The only difference is the 'custom= false' property in the json properties file.

Covers [UID-481](https://bonitasoft.atlassian.net/browse/UID-481)

* Added assets support + test
* Added IntelliJ Run Configurations

Covers [UID-484](https://bonitasoft.atlassian.net/browse/UID-484)

* Added new hidden command to generate a standard widget
* Add IntelliJ Run Configuration

Covers [UID-481](https://bonitasoft.atlassian.net/browse/UID-481)

feat(widget_generation): Update to widget generation

- no more custom prefix for id
- misc updates

* Update widget generation.

Covers [UID-475](https://bonitasoft.atlassian.net/browse/UID-475)

This reverts commit d147ef71.

* Adapted widget generation fo UID import. Generate files in directories, and zip it.
* Added Build on Windows
Covers UID-434

* Write test on CLI
* README update

feat(full_widget_generation): Generate all the required file for a widget in a dedicated directory (#6)

* New WebComponentCopier CLI

Covers [UID-441](https://bonitasoft.atlassian.net/browse/UID-441)

* - Removed UID tags
- Enhanced CLI
- Support of properties file generation from WC name

* Property and PropertiesInfo now use the Builder pattern

* Fixed + added tests

* Generate AngularJS (UID editor) and Angular (runtime) HTML templates

* Custom Widget Builder : first step to generate properties json file