Add SFML project with Paddle class and miscellaneous utilities

- Introduced `Paddle` class for player controls in the SFML project.
- Added `main.cpp` to demonstrate basic paddle movement and rendering.
- Created reusable templates (`templates.h`) and inline class (`inlines.h`) in the `misc` module.
- Defined `structs`, `enums`, `unions` in `misc/structs_enums_unions.h`.
- Updated CMake configuration for the `sfml` and `misc` modules.
- Included new assets for backgrounds, characters, enemies, and tiles.

cpp/misc/CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 4.1)
+project(misc)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_FLAGS -pedantic-errors)
+
+add_executable(misc
+        main.cpp
+        )