PR 334 Access Control chapter rewrite

There is now a PR containing the rewrite of the Access Control chapter that
Isaac and I have been working on for the last couple of months.
A reader friendly version is found below.
https://rawcdn.githack.com/UlfBj/automotive/1584b1d91fe3db23f49824ceeea6056f99f636fe/spec/Gen2_Core.html#access-control-model

I hope we can schedule a review of it on the next WG meeting Aug 11.

BR
Ulf
-- 
Ulf Bjorkengren
*Geotab*
Senior Connectivity Strategist | Ph. D.
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