w mx / Mbed 2 deprecated wmx_laser

于之前基础上增加功能：py启动后输入缩放比例，十秒内未输入，则初始化后重启py，方可按默认设置执行

Dependencies:   MQTT SDFileSystem WIZnet_Library mbed

Fork of Laser_SD_W5500 by YX ZHANG

Diff: WIZnet_Library.lib

Revision:
2:a50b794b8ede
Parent:
0:1170747a672f
--- a/WIZnet_Library.lib	Fri Aug 25 15:46:28 2017 +0000
+++ b/WIZnet_Library.lib	Mon Jun 04 15:16:05 2018 +0000
@@ -1,1 +1,1 @@
-https://mbed.org/teams/WIZnet/code/WIZnet_Library/#cb8808b47e69
+https://os.mbed.com/users/zhangyx/code/WIZnet_Library/#f390679a0468