chore: Guided Documentation for RC codebase

[AdityaSingh-02]

Proposed changes (including videos or screenshots)

Todo: merge with 6.3.2 and not in develop

Know more about project here

• Set of 9 essential tours which is enough to make any contributor or developer familiar with codebase

Tours Available

S no.	Tour
1	Repository Overview
2	How to send a message (Client Side)
3	How to send a message (Server Side)
4	How to create an endpoint
5	How to create a DB model
6	How to use DB model
7	Services in Rocket.Chat
8	How to Add a new Services
9	How to create a new Package

Issue(s)

GSOC-2023 project - Guided RC tours and Code walkthrough

Steps to test or reproduce

• Install CodeTour extension in VS code
• ctrl+shift+p or cmd+shift+p to open all commands and then select CodeTour : Start Tour

Further comments

• All changes are in JSON format, You would require a CodeTour extension to use it.

How it works and where would it get merged?

It would not create any merge conflict or code break, It would get merged into main codebase with a new folder .tours which would not break the code

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Latest commit: 4c54507

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.18%. Comparing base (169da3a) to head (4c54507).
Report is 2120 commits behind head on develop.

Additional details and impacted files

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Flag	Coverage Δ
e2e	48.50% <ø> (-0.07%)	⬇️
unit	64.80% <ø> (ø)

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