fix up github python scripts

[bwagner5]

1. Issue, if available:
N/A

2. Description of changes:

• set issues Make target as phony
• added requirements.txt with PyGithub dep and included a pip install -r requirements.txt to make issues
• added output files to .gitignore
• use python3 bin instead of plain python since some default to python2 (like on mac :) )
• fix output filenames to include the date

3. How was this change tested?

4. Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: link to issue
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[ellistarn]

Why doesn't *.csv catch this?