Refactor of structs

Refactored Size and Position
Placed them in different .h files

CMakeLists.txt

@@ -23,7 +23,9 @@ add_executable(LotoStatek main.cpp
         headers/Projectile.h
         sources/Projectile.cpp
         headers/Rocket.h
-        sources/Rocket.cpp)
+        sources/Rocket.cpp
+        headers/Size.h
+        headers/Position.h)
 
 if(WIN32)
     set(SFML_ROOT "${CMAKE_SOURCE_DIR}/lib/SFML")