moved shade into a seperate file

src/races.h

@@ -6,20 +6,9 @@
 
 #ifndef __RACES_H__
 #define __RACES_H__
-#include "characters.h"
 
-// IMPORTANT: assumes all available positions have excluded chlist
-
-class shade final: public character {
-public:
-        shade(const position_list &available_positions); // spawn at a random place
-        virtual result attack(const direction dir,
-                              character_list &chlist) override;
-        virtual result get_hit(const enum race &race, const int atk,
-                               const float hit_rate) override;
-};
-
-
-// TODO: implement enemie movement
+#include "shade.h"
+#include "goblin.h"
+#include "vampire.h"
 
 #endif