Pasaeta de "include-what-you-use" per arreglar els includes

Renombrats alguns fitxers per consistencia

source/scoreboard.cpp

@@ -1,5 +1,13 @@
 #include "scoreboard.h"
-#include <math.h>
+#include <SDL2/SDL_blendmode.h>  // for SDL_BLENDMODE_BLEND
+#include <SDL2/SDL_pixels.h>     // for SDL_PIXELFORMAT_RGBA8888
+#include <SDL2/SDL_timer.h>      // for SDL_GetTicks
+#include <math.h>                // for roundf
+#include "asset.h"               // for Asset
+#include "lang.h"                // for getText
+#include "sprite.h"              // for Sprite
+#include "text.h"                // for Text
+#include "texture.h"             // for Texture
 
 // Constructor
 Scoreboard::Scoreboard(SDL_Renderer *renderer)