Closes #74 Added helper scripts and converted GFED5

[msteckle]

Thank you for contributing to ILAMB-Data. Use this template when submitting a pull request.

🛠 Issue reference #74

✨Include a reference to the issue # here.
Summarize the changes you are making to the repo. Are you fixing a bug? Adding a dataset? Describe what you did in a few sentences or bullet points.

• I added a scripts directory with an init.py file so users can import useful helper functions
  • validate_dataset.py (to check netCDFs)
  • biblatex_builder.py (to create properly formatted biblatex citation strings)
  • helper_funcs.py (to quickly set attributes, encoding, global attributes, and netCDF file naming)
  • compare_datasets.py (I think this was already there?)
• I shortened the pull request template because I think it would be better to just change the README to include an example of how to use the functions in helper_funcs.py. I can restore the previous pull request template if you're not into this change.
• Processed GFED5 to close issue GFED5 (burned area) #74

🧪 Testing

✨Add an x between the brackets to indicate basic testing was completed

• I inspected the outputted NetCDF and checked for obvious errors
• I visualized the outputted NetCDF at a timestamp to check for obvious visual errors
• I compared my convert script to recent existing ones
• I attempted to create/encode the NetCDF according to CF Compliance guidelines

🧪 (Optional) Preview

✨Attach an image of your dataset here