[frameworks]Add user docs to EEF folder

[chinthap]

Description

Added the Userguide and Overview documents and added another user for write permission to frameworks folder. Included vPRO and Magic-9 instructions in the Readme file for EEF.

Fixes # (issue)

Any Newly Introduced Dependencies

Please describe any newly introduced 3rd party dependencies in this change. List their name, license information and how they are used in the project.
No code changes. Only user guide documents are uploaded.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration
No code changes. Only uploaded documents.

Checklist:

• I agree to use the APACHE-2.0 license for my code changes.
• I have not introduced any 3rd party components incompatible with APACHE-2.0.
• I have not included any company confidential information, trade secret, password or security token.
• I have performed a self-review of my code.