offline compile base

Dependencies:   mbed SDFileSystem MU2 GPS

Revision:
0:301e9f8aafb4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SDFileSystem.lib	Wed Aug 21 02:10:00 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/teams/mbed/code/SDFileSystem/#8db0d3b02cec