Function PixelSearch

PixelSearch(
    left: number,
    top: number,
    right: number,
    bottom: number,
    color: number,
    shadeVariation?: number,
    step?: number,
): Promise<IPoint>
Searchs for a given pixel within the specified region.

The actual AU3_PixelSearch function from AutoIt appears to be broken so it has been reimplemented here using Windows GDI32 and User32 libraries.
Parameters
- left: number
  The X coordinate of the left edge of the rectangle.
- top: number
  The Y coordinate of the top edge of the rectangle.
- right: number
  The X coordinate of the right edge of the rectangle.
- bottom: number
  The Y coordinate of the bottom edge of the rectangle.
- color: number
  The color to search for, in 0xRRGGBB format.
- shadeVariation: number = 0
  The allowed variation in color shades (default is 0).
- step: number = 1
  The step value for the search (default is 1).
Returns Promise<IPoint>
A promise that resolves to an IPoint object with the coordinates of the found pixel. If the pixel is not found, the promise resolves to a point with coordinates (-1, -1).
See
- https://www.autoitscript.com/forum/topic/210967-autoitx-au3_pixelsearch-access-violation/
- https://www.autoitscript.com/forum/topic/210967-autoitx-au3_pixelsearch-access-violation/#comment-1525551
Example
```
import { PixelSearch } from '@ahmic/autoit-js';

const result = await PixelSearch(0, 0, 100, 100, 0xFF0000);

console.log(result); // Output: { x: 50, y: 50 }
```
- Defined in pixel-search.ts:168