Major code reorganization

This commit only updates the XCode project for the changes.
A later commit each will update it for scons and MSVC.

A few actual changes are mixed in:
- Add a prefix header for a handful of common definitions
- Moved current_cursor into the Cursor class as a static member
- Removed the make_cursor_sword and make_cursor_watch functions
- Include tests in the All target
- Remove redundant -l flags for Common and Common-Party (since they're included in the Link phases anyway)

src/porting.hpp

@@ -0,0 +1,28 @@
+/*
+ *  porting.h
+ *  BoE
+ *
+ *  Created by Celtic Minstrel on 22/04/09.
+ *
+ */
+
+#include <cstdint>
+#include "oldstructs.hpp"
+#include "location.hpp"
+
+void flip_long(int32_t *s);
+void flip_spec_node(legacy::special_node_type *spec);
+void flip_short(int16_t *s);
+void flip_rect(legacy::Rect* s);
+
+void port_t_d(legacy::big_tr_type* old);
+void port_ave_t(legacy::ave_tr_type* old);
+void port_tiny_t(legacy::tiny_tr_type* old);
+void port_scenario(legacy::scenario_data_type* old);
+void port_item_list(legacy::scen_item_data_type* old);
+void port_out(legacy::outdoor_record_type* out);
+void port_talk_nodes(legacy::talking_record_type* dummy_talk_ptr);
+void port_town(legacy::town_record_type* dummy_town_ptr);
+void port_party(legacy::party_record_type* old);
+void port_pc(legacy::pc_record_type* old);
+void port_c_town(legacy::current_town_type* old);