Add the Waterhole object

[Districh-ru]

Many thanks to @PusshPop for animated sprites for the Waterhole object.

fheroes2.2025-10-21.21-01-58-036.mp4

To properly represent the objects the water cycling colors were duplicated in the game palette to the non-cycle palette part. The same is done also for the lava cycling colors (it includes changes from #10287):

The new colors are placed in the unused part of palette (color IDs 246-253).
All engine palette conversion tables are updated to support the new colors (the values are mostly taken from their updated cycling colors in the corresponding table).

The Barrel object is also updated with the new palette colors.

TODO:

• Add the logic for human player for the Waterhole object;
• Add the logic for AI player for the Waterhole object.

[github-actions]

⚠️ Clang-Tidy found issue(s) with the introduced code (1/1)