feat: add filter to exclude openclimatefix.org emails

[suvanbanerjee]

Pull Request

Description

added exclude_openclimatefix to remove exclude_openclimatefix email from dataframe

Fixes #150

How Has This Been Tested?

This PR is not tested wating for db setup

• Yes

If your changes affect data processing, have you plotted any changes? i.e. have you done a quick sanity check?

• Yes
• No

Checklist:

• My code follows OCF's coding style guidelines
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked my code and corrected any misspellings