Adding github actions and some reorganizations

[cansavvy]

Purpose/implementation Section

What changes are being implemented in this Pull Request?

This is starting to get at: #130

This is GHA infrastructure I've used on a lot of different repos and its pretty stable and works well.

It runs the test that checks and will stop the GHA if the test that checks fail. However because those tests aren't added until #135 the check_testthat.R fails for now.

What's added/changed here:

• Deleted a bookdown function that isn't used anymore
• Added a data download function for testing purposes
• Adding that data download function allowed me to delete sample files I had hanging around in exchange for the function that will get the latest files that will be the more accurate test.
• Added some boilerplate GHA's that I use on every R package