Added UFile::copy()

git-svn-id: http://rtabmap.googlecode.com/svn/trunk/rtabmap@909 f169173b-cf89-36c8-b27e-44dbe73f0c83

utilite/include/rtabmap/utilite/UFile.h

@@ -72,6 +72,8 @@ public:
 
 	static std::string getExtension(const std::string &filePath);
 
+	static void copy(const std::string & from, const std::string & to);
+
 public:
 	/**
 	 * Create a UFile object with path initialized to an existing file .
@@ -128,6 +130,8 @@ public:
 	 */
 	std::string getExtension() {return getExtension(path_);}
 
+	void copy(const std::string & to) {copy(path_, to);}
+
 private:
 	std::string path_;
 };