Initial configuration

[c-bartell]

Necessary checkmarks:

• All Tests are Passing
• The code will run locally

Type of change:

• New feature
• Bug Fix

Implements/Fixes:

This PR adds and configures RSpec, shoulda-matchers, rubocop-rails, simplcov, factorybot, and faker. A PR template and rubocop configuration file have also been added.

• closes Create project #1
• closes Do initial gem installations and configurations #2
• closes Add a PR template #3
• closes Add a .rubocop.yml file #4

Check the correct boxes:

• This broke nothing
• This broke some stuff
• This broke everything

Testing Changes:

• No Tests have been changed
• Some Tests have been changed
• All of the Tests have been changed(Please describe what in the world happened)

Checklist:

• My code has no unused/commented out code
• I have reviewed my code
• I have commented my code, particularly in hard-to-understand areas
• I have fully tested my code

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