Add trademark usage guidelines document

[tonygermano]

No description provided.

[kayyagari]

@tonygermano thank you for putting these guidelines together. They are permissive where appropriate. It is looking good to me.

[Copilot]

Pull request overview

This PR adds a new trademark usage guidelines document to establish clear rules for how the Open Integration Engine trademarks can be used by the community and third parties.

Key Changes:

• Creates comprehensive trademark usage guidelines covering permitted uses, prohibited uses, and uses requiring permission
• Defines the project's trademark portfolio (name, acronym, and logo)
• Provides attribution requirements for trademark usage

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[pacmano1]

This document is largely USA- and UK-centric and uses terminology that does not universally apply across jurisdictions. Outside of those countries, there is currently no legal basis or enforcement mechanism unless and until an international framework (such as registration via the Madrid System) is in place.

Accordingly, directive language such as “must” or “may not” implies authority that does not presently exist in many regions. Until broader legal coverage is established, these guidelines should be framed as requests made out of respect for the work and the community effort, rather than enforceable requirements.

For clarity and accuracy, the tone and wording should be adjusted to reflect this reality.