Make validation optional

[petedannemann]

Description of change

Make validation optionally configurable. This attempts to solve #24

Manual QA steps

• Clone this PR
• pip install -e .
• create a config file with validate_records

{
    "validate_records": false
}

• Run on a mysql database with validation
• Run validate_records above to True
• Run on a mysql database with validation

Risks

• None

Rollback steps

• revert this branch

[cmerrick]

Hi @petedannemann, thanks for your contribution!

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[cmerrick]

You did it @petedannemann!

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