feat(player): salt vertical amb física, màquina d'estats i animació jump_*

source/utils/defaults.hpp

@@ -77,6 +77,7 @@ namespace Defaults {
         constexpr SDL_Scancode DOWN = SDL_SCANCODE_DOWN;
         constexpr SDL_Scancode LEFT = SDL_SCANCODE_LEFT;
         constexpr SDL_Scancode RIGHT = SDL_SCANCODE_RIGHT;
+        constexpr SDL_Scancode JUMP = SDL_SCANCODE_M;
         constexpr SDL_Scancode EXIT = SDL_SCANCODE_ESCAPE;
     }  // namespace KeysGame
 
@@ -89,6 +90,7 @@ namespace Defaults {
         constexpr SDL_Scancode DOWN = SDL_SCANCODE_S;
         constexpr SDL_Scancode LEFT = SDL_SCANCODE_A;
         constexpr SDL_Scancode RIGHT = SDL_SCANCODE_D;
+        constexpr SDL_Scancode JUMP = SDL_SCANCODE_V;
     }  // namespace KeysGameP2
 
     namespace Player {