Added example yml to run CVE Binary Tool in github actions

[Niraj-Kamdar]

I have tested it on my github repo: https://github.com/Niraj-Kamdar/qpt_generator/actions/runs/219903197
I also want to submit this action for github action hackathon by dev.to. Is it okay?
Fixes: #272

[codecov-commenter]

Codecov Report

Merging #894 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #894   +/-   ##
=======================================
  Coverage   84.70%   84.70%           
=======================================
  Files         167      167           
  Lines        2765     2765           
  Branches      298      298           
=======================================
  Hits         2342     2342           
  Misses        345      345           
  Partials       78       78           

Flag	Coverage Δ
#longtests	84.70% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a8e1866...00c1322. Read the comment docs.

[pdxjohnny]

If we're going to do this, we might as well go the rest of the way and provide them with a GitHub action that scans a specified directory: https://docs.github.com/en/actions/creating-actions/creating-a-docker-container-action. Do you think you have time to do that? If so that would be ideal.

[Niraj-Kamdar]

I see GitHub has added another way to create actions: "composite" action. Now we can use another action to create actions which is perfect for our use case.
When I learned creating actions they only had two options docker and typescript.

[Niraj-Kamdar]

Today I have explored github's composite action feature but it is still actively being developed and lacks many features that I need to create a working action for cve-bin-tool. We need to wait until github introduces those features.