add SetValue

stepmania/src/IniFile.cpp

@@ -271,6 +271,11 @@ const IniFile::key *IniFile::GetKey(const CString &keyname) const
 	return &i->second;
 }
 
+void IniFile::SetValue(const CString &keyname, const key &key)
+{
+	keys[keyname]=key;
+}
+
 void IniFile::RenameKey(const CString &from, const CString &to)
 {
 	if(keys.find(from) == keys.end())

stepmania/src/IniFile.h

@@ -92,6 +92,7 @@ public:
 	bool DeleteKey(const CString &keyname);
 
 	const key *GetKey(const CString &keyname) const;
+	void SetValue(const CString &keyname, const key &key);
 
 	/* Rename a key. For example, call RenameKey("foo", "main") after
 	 * reading an INI where [foo] is an alias to [main].  If to already