oneTBB Identified roles for contributors

[rodburns]

The project will publish identified roles for contributors, including maintainers/reviewers for specific backends alongside project lead maintainers/reviewers. The CNCF community ladder can be used as a guide.

Acceptance Criteria:

• A list of roles and responsibilities is available to read on the project repository
• It is clear for the community what roles are available to them and how they can attain them

[vbm23]

@pavelkumbrasev here task would be to identify various Project Role Names, its Responsibilities, its Privileges and Process of taking up that Role in the project and you can refer other project, can also help close #105

[vbm23]

@pavelkumbrasev here task would be to identify various Project Role Names, its Responsibilities, its Privileges and Process of taking up that Role in the project and you can refer other project, can also help close #104

[vbm23]

@pavelkumbrasev Would you have any updates with regards to this ticket as I assume you have been discussing with Timmie sometime last week?

[pavelkumbrasev]

We started discussion the roles internally.

[pavelkumbrasev]

oneapi-src/oneTBB#1560
This PR introduce both GitHub roles and the process