[PC-1246] Opta: Modbus RTU on PLC IDE Tutorial (#2191)

* Initial commit - Modbus RTU PLC IDE Opta Tutorial draft

* Tutorial content element depopulate and patch (Directory update)

* Tutorial content draft element shareholder populate

* Tutorial content resources mass update

* Tutorial content resources update

* Tutorial content resources update w/ minor patch

* Tutorial content minor update

* Tutorial content minor patch

* Tutorial content resources update

* Tutorial content draft minor patch

* Tutorial content overall pre-refinement update

* Tutorial content update

* Tutorial content fitment update

* Tutorial content post review update

* Tutorial content minor update post review

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Co-authored-by: TaddyHC <k.hochung@arduino.cc>

Author: ArduinoBot