Move all enum types definitions to types.h

Cleanup headers while there.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>

src/endgame.h

@@ -17,21 +17,11 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-
 #if !defined(ENDGAME_H_INCLUDED)
 #define ENDGAME_H_INCLUDED
 
-////
-//// Includes
-////
-
 #include "position.h"
-#include "value.h"
-
-
-////
-//// Types
-////
+#include "types.h"
 
 enum EndgameType {
 
@@ -94,11 +84,4 @@ struct ScalingFunction : public EndgameScalingFunctionBase {
   ScaleFactor apply(const Position&) const;
 };
 
-
-////
-//// Prototypes
-////
-
-extern void init_bitbases();
-
 #endif // !defined(ENDGAME_H_INCLUDED)