Remove VulkanState dependency

Passing VulkanState everywhere (including windowLoop) made no sense.
I know that "globals are evil", but this is the best solution for now.

graphics/CMakeLists.txt

@@ -52,6 +52,7 @@ target_sources(rse_graphics PRIVATE
     src/vulkan_descriptors.cpp
     src/rse_graphics.cpp
     src/mesh_controller.cpp
+    src/vulkan_commons.cpp
 )
 
 target_link_libraries(rse_graphics PRIVATE