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: SDFileSystem.lib

Revision:
4:ae6f380a5b41
Parent:
3:a5f1701dc0e6
--- a/SDFileSystem.lib	Sun Jul 22 07:50:47 2018 +0000
+++ b/SDFileSystem.lib	Sun Jul 22 15:53:24 2018 +0000
@@ -1,1 +1,1 @@
-https://os.mbed.com/users/zhangyx/code/SDFileSystem/#12c57630ea44
+http://developer.mbed.org/users/neilt6/code/SDFileSystem/#3fa5eaf48e81