Excel Blank Rows Calls mutateBeforeCreate (#66)

[byt3sage]

Proposed changes

So this is linked to #66. Basically, I wanted to add in a way to filter out blank rows (excel blank rows not just rows with no data). Although I feel this would be beneficial to have enabled by default, I didn't want to break peoples own implementations of handling this such as handing this in the handleRecordCreation() function although I cannot think of a valid use case where people would want to import these blank rows. I'm happy to be led by maintainers as to if we enable this by default or not, I just didn't want to unleash a potentially breaking change.

I'm happy to provide a spreadsheet which includes these blank rows if you would like to see this.

Types of changes

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• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

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Further comments

I will update the documentation now, I also need to run the tests locally (just had a few issues getting them running on my work machine) and I do think it would be beneficial to add in a test which covers these blank rows although I don't think this PR should be dependent on that.

[byt3sage]

So local tests are fine, we probably need to have a think if you want to merge this feature, on how we implement the test for this. I think we're going to need to include an .xlsx file in the tests folder which contains these blank rows as this is excel specific.

[frankyso]

thank you