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/sfml/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.28)
+project(CMakeSFMLProject LANGUAGES CXX)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
+include(FetchContent)
+FetchContent_Declare(SFML
+        GIT_REPOSITORY https://github.com/SFML/SFML.git
+        GIT_TAG 3.0.2
+        GIT_SHALLOW ON
+        EXCLUDE_FROM_ALL
+        SYSTEM)
+FetchContent_MakeAvailable(SFML)
+
+add_executable(main
+        src/main.cpp
+        src/Paddle.cpp
+)
+target_compile_features(main PRIVATE cxx_std_17)
+target_link_libraries(main PRIVATE SFML::Graphics)
+
+set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT main)