Enhance CMake configuration for PNG support and introduce vcpkg.json

- Updated CMakeLists.txt to conditionally enable PNG support based on the presence of the PNG library, improving compatibility for minimal builds.
- Added vcpkg.json to manage project dependencies, including zlib, libpng, sdl2, and abseil, streamlining package management.
- Modified CI workflow in ci.yml to simplify CMake configuration commands for better readability.
- Enhanced CMake scripts to ensure proper handling of dependencies in both minimal and regular builds, improving build reliability.

src/app/app.cmake

@@ -45,11 +45,15 @@ target_include_directories(
   ${CMAKE_SOURCE_DIR}/incl/
   ${CMAKE_SOURCE_DIR}/src/
   ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine
-  ${PNG_INCLUDE_DIRS}
   ${SDL2_INCLUDE_DIR}
   ${PROJECT_BINARY_DIR}
 )
 
+# Conditionally add PNG include dirs if available
+if(PNG_FOUND)
+  target_include_directories(yaze PUBLIC ${PNG_INCLUDE_DIRS})
+endif()
+
 # Conditionally link nfd if available
 if(YAZE_HAS_NFD)
   target_link_libraries(yaze PRIVATE nfd)
@@ -63,12 +67,16 @@ target_link_libraries(
   asar-static
   ${ABSL_TARGETS}
   ${SDL_TARGETS}
-  ${PNG_LIBRARIES}
   ${CMAKE_DL_LIBS}
   ImGui
   ImGuiTestEngine
 )
 
+# Conditionally link PNG if available
+if(PNG_FOUND)
+  target_link_libraries(yaze PUBLIC ${PNG_LIBRARIES})
+endif()
+
 if (APPLE)
   target_link_libraries(yaze PUBLIC ${COCOA_LIBRARY})
 endif()

src/app/core/project.cc

@@ -1,6 +1,7 @@
 #include "project.h"
 
 #include <fstream>
+#include <sstream>
 #include <string>
 
 #include "app/gui/icons.h"