Description:

We would like to request the addition of multi-cell selection functionality to the Kendo Grid for Vue, similar to what is available in the Kendo Grid jQuery version.

Current Situation: The Kendo Grid for Vue currently supports:

Row selection via the selectedField prop with checkboxes
Single row highlighting
Cell navigation via the navigatable prop
However, it lacks the ability to select multiple individual cells or cell ranges, which is a feature available in the jQuery version of Kendo Grid.

Requested Feature: Add multi-cell selection capabilities to the Kendo Grid for Vue, including:

Selection Modes:

- Single cell selection
- Multiple cell selection (Ctrl+Click)
- Range selection (click and drag, or Shift+Click)
- Column selection
- Row selection (already exists)

API/Props:

selectable prop with values like:

-"cell" - single cell selection
- "multiple, cell" - multiple cell selection
- "cell, row" - combined cell and row selection

selectedCells prop to track selected cell coordinates

onCellSelectionChange event handler

Functionality:
- Visual feedback for selected cells (highlight/styling)
- Keyboard navigation support (arrow keys, Shift+arrows for range selection)

Use Cases:
- Data analysis and comparison across multiple cells
- Batch operations on selected cells