Add folder for licenses

A folder was created for pasting the licenses from the Beckhoff CPU as a backup.
A ReadMe file was included explaining where the licenses are located.

solution/Licenses/ReadMe_licenses.txt

@@ -0,0 +1,5 @@
+Copy and paste in this folder the licenses contained inside the Beckhoff CPU in the path:
+
+C:\TwinCAT\3.1\Target\License 
+
+Thank you