Add new template for CEO Shadow application

Why is this change being made?

Adding a template for applications to the CEO Shadow program. This is to ensure consistency and that manager approval, as well as considerations, are captured before the MR is submitted.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what