Updated with emergency button and watchdog code

Dependencies:   wheelchaircontrol4 Watchdog ros_lib_kinetic

Revision:
11:c9afd96fa08b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ros_lib_kinetic.lib	Thu Jun 27 18:09:10 2019 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/garyservin/code/ros_lib_kinetic/#a849bf78d77f