Add support for generating reports in PDF format

[damies13]

Is your feature request related to a problem? Please describe.
Add support for generating reports as PDF

Additional context
This feature was originally planned for the initial version, but was left out due to time constraints, and not being sure how to implement it.

pypdf
This Library looks like it will allow us to generate a PDF file?

• https://github.com/py-pdf/pypdf
• https://pypdf.readthedocs.io/en/latest/index.html

FPDF for Python
This Library looks like it might be easier?

• https://pyfpdf.readthedocs.io/en/latest/
• Oh Dear Is This Project Maintained? reingart/pyfpdf#171

fpdf2
This one looks more promising, and well maintained (last release 10 days ago)

• https://pypi.org/project/fpdf2/
• https://py-pdf.github.io/fpdf2/
• https://github.com/py-pdf/fpdf2

[damies13]

Also consider https://github.com/pikepdf/pikepdf