fix(admin-tool): export and Import of Donations must be in sync without errors

[mehul0810]

Issue Overview

I think that user would use Import and Export functionality whenever he want to migrate the donations data (in our case right now). So, there must be sync that when a user export the CSV and then import the same using importer then it should automatically match the required fields, rather than showing errors.

http://recordit.co/jMkMKbzkqe

Expected Behavior

When user uses out Export Donations Tools and uses the same CSV in our Import Tool then is shouldn't give error of required fields, rather importer should be able to match those fields in CSV.

Current Behavior

Currently, Even if user uses the exported donation CSV of GIVE Core, still while import it is showing required field errors.

Steps to Reproduce (for bugs)

1. Install Give
2. Go to Tools > Export
3. Export Donations CSV
4. Go to Tools > Import
5. Import the recently exported CSV
6. Proceed upto Step 2: Column Mapping
7. Click on Submit without changing any thing and you will see errors of required fields.

Todos

• Tests
• Documentation

[DevinWalker]

@mehul0810 the video doesn't appear to be working

[mehul0810]

@DevinWalker Updated comment with video url