Basic xdot code to check how many memory is available for user APP after initializing libxdot lorawan stack

Revision:
30:2f5ae37e6c47
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/lib/ISL29011.lib	Mon Apr 30 14:46:28 2018 -0500
@@ -0,0 +1,1 @@
+https://developer.mbed.org/teams/Multi-Hackers/code/ISL29011/#953adca17438