[DRAFT] Add CEO KR Criteria and edit process

Why is this change being made?

This MR is the result of OKR Champions group feedback on ways to improve CEO OKRs. Adding these criteria should align OKRs to company strategy and to financial plan. This change also makes OKRs a better tool for addressing the top things we need to do to be successful as a company

OKR Progress agenda notes: https://docs.google.com/document/d/1UaIesFJVvYfUA1ndZeWknUHW2RB1UP6h0WTThQ2RM4U/edit#

Author Checklist

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies
• If the changes affect team members, or warrant an announcement in another way, please consider posting an update in #whats-happening-at-gitlab linking to this MR
  • If this is a change that directly impacts the majority of global team members, it should be a candidate for #company-fyi. Please work with internal communications and check the handbook for examples.

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