WIP: All team owners are members

[epugh]

Description

Working on perf issues.

First fix was the insight given by folks on #ruby that owners are also members, so we can simplify the access logic to just look for team.members.

Motivation and Context

So slow!

How Has This Been Tested?

unit testsw and by hand.

Screenshots or GIFs (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [] Improvement (non-breaking change which improves existing functionality)
• [] New feature (non-breaking change which adds new functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [] My code follows the code style of this project.
• [] My change requires a change to the documentation.
• [] I have updated the documentation accordingly.
• [] I have read the CONTRIBUTING document.
• [] I have added tests to cover my changes.
• [] All new and existing tests passed.