[licenses] Add pal-license.

a6b5a4e4 · Olivier Stasse · 021b0f3f · a6b5a4e4
Commit a6b5a4e4 authored Apr 28, 2018 by Olivier Stasse
--- a/pal-license
+++ b/pal-license
+  Copyright (c) 2018 PAL-Robotics
+  All rights Reserved.
+
+  Conditions for External Use
+
+  The routines may not be distributed to third parties.
+  Interested parties shall contact PAL-Robotics directly.
+
+  Enquiries should be directed to
+  PAL-Robotics.