Missing documentation for RtlService

[LiorCapsiSAP]

We needed to use a control (menu in our case) in RTL. In the FD documentation, there is a button to "simulate RTL" but there is no documentation about how to implement it in our own application (using RtlService). I had to go to the documentation source code to see how the button was implemented there.
It would be a great help to have a section in the documentation about RtlService and how/when to use it. Maybe even add an RTL section to the doc of every control