Add new modules for Crusader map rendering and processing

- Implemented `formats.py` to define data structures and functions for handling map data, including reading and decoding shape and map items.
- Created `png.py` for generating PNG images from shape frames and pixel data.
- Developed `sorting.py` to manage the sorting and rendering order of map items based on their properties and spatial relationships.
- Introduced `render_all_maps.py` to facilitate the rendering of all maps for specified games, including command-line argument parsing and subprocess management for rendering tasks.

tools/crusader_map/__init__.py

@@ -0,0 +1,3 @@
+from .cli import main
+
+__all__ = ["main"]