Creating a project about VL6180XA1 for TT_Mxx

Revision:
0:293917667c17
Child:
3:7a97a01bad5e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Thu Mar 21 09:19:56 2019 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#51d55508e8400b60af467005646c4e2164738d48