Refactor: Change of the widget folder structure and plugin creation

Description

The widget folder currently lacks a clear hierarchy, with all widgets placed at the same level. This MR introduces a structured organization by nesting and grouping widgets according to their use cases, such as plotting, control, containers, etc.

Additionally, the plugin generator is updated to detect classes with a PLUGIN=True class attribute, allowing us to specify which widgets should have plugins generated. This approach replaces the previous method, which generated plugins only for top-level widgets inheriting from the BECWidget base class.

Related Issues

Closes #408 (closed)

Type of Change

• Plugin generation is now based on a class attribute.
• widget folder is reorganized for better structure.

Potential Side Effects

Some imports may still be incorrect and require verification.

New Structure

Reorganized Widget Structure

• control: Widgets for data acquisition, device control, and experiment setup
  • device_control: Position-related widgets
    • position_indicator
    • positioner_box
    • positioner_group
  • buttons: Action-trigger widgets
    • stop_button
    • button_reset
    • button_resume
    • button_abort
  • scan_control: Widgets for scanning and data grouping
    • scan_group_box
    • scan_control
  • device_input: Inputs related to devices
    • device_line_edit
    • base_classes
    • signal_line_edit
    • device_combobox
    • signal_combobox
• services: Service-oriented widgets
  • device_browser
  • bec_queue
  • bec_status_box
• plots: Visualization widgets for data display
  • multi_waveform
  • motor_map
  • image
  • waveform
• dap: Data analysis and processing widgets
  • dap_combo_box
  • lmfit_dialog
• containers: Layout and grouping widgets
  • figure
  • dock
• utility: Widgets for UI customization and auxiliary controls
  • spinner
  • toggle
  • visual
    • colormap_selector
    • colormap_widget
    • dark_mode_button
    • color_button

Folder Structure

widgets/
├── control/
│   ├── device_control/
│   │   ├── position_indicator/
│   │   ├── positioner_box/
│   │   └── positioner_group/
│   ├── buttons/
│   │   ├── stop_button/
│   │   ├── button_reset/
│   │   ├── button_resume/
│   │   └── button_abort/
│   ├── scan_control/
│   │   └── scan_group_box/
│   └── device_input/
│       ├── device_line_edit/
│       ├── base_classes/
│       ├── signal_line_edit/
│       ├── device_combobox/
│       └── signal_combobox/
├── services/
│   ├── device_browser/
│   ├── bec_queue/
│   └── bec_status_box/
├── plots/
│   ├── multi_waveform/
│   ├── motor_map/
│   │   └── motor_map_dialog/
│   ├── image/
│   └── waveform/
│       └── waveform_popups/
│           ├── dap_summary_dialog/
│           └── curve_dialog/
├── dap/
│   ├── dap_combo_box/
│   └── lmfit_dialog/
├── containers/
│   ├── figure/
│   │   └── plots/
│   │       ├── multi_waveform/
│   │       ├── motor_map/
│   │       ├── image/
│   │       └── waveform/
│   └── dock/
└── utility/
    ├── spinner/
    ├── toggle/
    └── visual/
        ├── colormap_selector/
        ├── colormap_widget/
        ├── dark_mode_button/
        └── color_button/

Additional Comments

I don't have a strong preference regarding folder names and am open to other suggestions.

Definition of Done

• Documentation is up-to-date.
• Imports have been verified.