Add rstl::binary_find

Including CAnimData::GetBoundingBox


Former-commit-id: e4a864880b

include/rstl/functional.hpp

@@ -0,0 +1,18 @@
+#ifndef _RSTL_FUNCTIONAL
+#define _RSTL_FUNCTIONAL
+
+namespace rstl {
+
+template < typename P >
+struct identity {
+  const P& operator()(const P& it) const { return it; }
+};
+
+template < typename T >
+struct less {
+  bool operator()(const T& a, const T& b) const { return a < b; }
+};
+
+} // namespace rstl
+
+#endif // _RSTL_FUNCTIONAL