Add cloudformation template and script for dynamo db creation

[aaronallenCS]

Closes #23

This PR adds a Cloudformation template for creating a new DynamoDB and Table, and a shell script to deploy it.

This is what the script looks like after a successful deployment:

Here it is being shown in AWS:

Testing

Pre-reqs

• You need a bash or zsh. If you're on Windows, there are lots of guides for adding bash, here's one
• You must have the aws cli installed and it must be configured to use your access and secret key

Steps

1. From the root of the repo, cd devops/makeDynamoDb
2. Run the following: ./makeDynamoDb.sh
3. Enter your initials when prompted and press Enter
   • must only consist of letters a-z
   • can be no less than 2 chars
   • can be no more than 5 chars
4. You'll see a preview of your database and stack name. Confirm you want to create the stack and database by entering "y" and pressing Enter

Activities Documentation

Date	Activity	Time Spent
01/17/2022	Researching Cloudformation	2 hr
01/18/2022	Testing	0.5 hr
01/18/2022	Documentation	0.5 hr
01/18/2022	Researching shell scripts	1 hr
01/18/2022	Writing shell script	0.5 hr