ActionReplay: UI Consistency and Cleanup

Cleanup code style.

Move ActionReplay code->INI saving into ActionReplay namespace.

Threadsafety Cleanup: ActionReplay is accessed from the Host, Emu
and CPU Threads so the internal storage needs to be protected by a
lock to prevent vectors/strings being deleted/moved while in use by
the CPU Thread.

UI Consistency: Make ARCodes behave like Gecko Codes - only apply
changes when Apply is pressed. Save changes to INI from CheatsWindow.

ISOProperties/CheatsWindow now synchronize with each other.

Source/Core/DolphinWX/Globals.h

@@ -331,10 +331,11 @@ enum
 
 // custom message macro
 #define EVT_HOST_COMMAND(id, fn) \
-	DECLARE_EVENT_TABLE_ENTRY(\
-			wxEVT_HOST_COMMAND, id, wxID_ANY, \
-			(wxObjectEventFunction)(wxEventFunction) wxStaticCastEvent(wxCommandEventFunction, &fn), \
-			(wxObject*) nullptr \
-			),
+	EVT_COMMAND(id, wxEVT_HOST_COMMAND, fn)
 
 wxDECLARE_EVENT(wxEVT_HOST_COMMAND, wxCommandEvent);
+
+// Sent to wxTheApp
+// GetString() == Game's Unique ID
+// GetInt() == Game's Revision
+wxDECLARE_EVENT(DOLPHIN_EVT_LOCAL_INI_CHANGED, wxCommandEvent);