sheet/column name/order checking

[g-pechorin]

Is this the right issue type?

• Yes, I'm planning work for this project team.

Summary

We should be checking for unexpected columns or sheets.

Related to (or expansion of?) #78

Acceptance Criteria

• unexpected sheets are detected
• unexpected columns are detected
• ignored sheets (data dictionary, revision log, etc) are ignored
• ignored columns are ignored

Confirm creation

• Ready to create this feature?

[g-pechorin]

I'm tempted to discard the "order" aspect of this check

[AndyRae]

Could this be added to the backlog so a priority can be added?