Field import feedback

[bellerbrock]

Description

Modifies field import code to add more detailed error reporting. Returns and displays error details in an alert dialog with the specific value and row number. Reported errors include:

Duplicate unique ids
Unique ids with unallowed special characters
Missing unique, primary, or secondary ids

closes #922

Change Type

• ADDITION (non-breaking change that adds functionality)
• CHANGE (fix or feature that alters existing functionality)
• FIX (non-breaking change that resolves an issue)
• OTHER (use only for changes like tooling, build system, CI, docs, etc.)

Release Note

Added more detailed reporting of field import errors

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Release Type

For internal use - please leave these unchecked unless you are the one completing the merge.

• MAJOR
• MINOR
• WAIT (No immediate release, but the changelog will be still be updated if there is a release note.)