Maniacs Patch - ChangePictureId command + Pictures Inspector

[jetrotal]

Had to put those two together because I needed one to test another

Change Picture command:

Added support for the Maniac Patch ChangePictureId event command, enabling move, swap, and slide operations on picture IDs with error handling and sprite refresh logic. This replaces the previous stub implementation and ensures proper picture management for Maniac Patch compatibility.

Map for testing the command: Map0003.zip

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Pictures Inspector:

Introduces a new debug scene and windows for viewing and inspecting active pictures and string windows. Updates scene and debug menu logic to support the new 'DebugPicture' scene, adds menu option, and implements detailed property display for both image and string pictures.