Added Missing CMakeLists.txt to the project

CMakeLists.txt

@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.28)
+project(Drugwars)
+find_package(Doxygen REQUIRED)
+
+set(CMAKE_CXX_STANDARD 20)
+
+add_executable(Drugwars src/main.cpp
+        src/Bag.cpp
+        src/Player.cpp
+        src/Bank.cpp
+
+)
+target_include_directories(Drugwars PRIVATE src/include)
+
+if(DOXYGEN_FOUND)
+    set(DOXYGEN_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/docs")
+
+    configure_file(${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile ${CMAKE_CURRENT_BINARY_DIR}/docs/Doxyfile @ONLY)
+
+    add_custom_target(doc ALL
+            COMMAND ${DOXYGEN_EXECUTABLE} docs/Doxyfile
+            WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+            COMMENT "Generating API documentation with Doxygen"
+            VERBATIM)
+endif()