[REG-1308] Documentation for Unity C# bots

[RG-nAmKcAz]

• Note, some guides still point to javascript bots
• Javascript and csharp docs separated in the sidebar and pages
• Created csharp docs with examples
  • see https://github.com/Regression-Games/RGUnityBots/pull/52 for updates that were required in the SDK
• I did NOT copy the API docs from the code into the Csharp documentation pages. Unlike the Javascript bots you are working in an IDE for C# and have full API docs inline with your coding so this seemed unnecessary dual maintenance of the doc for C#.

[RG-nAmKcAz]

@vontell Open question ... when do we want to update the tutorials to point to Unity C# instead of Javascript

Future tasks

• REG-1331 - Update doc tutorials to be based on Unity Local C# bots
• REG-1332 - Add support for validation bots to Unity Local C# bots runtime / apis / docs