Brandon Henry - Added submissions for Frontend, Most of Backend, and Part 1 of Database

[Angusman17]

I finished all of the requirements for the Frontend challenge, with a little extra spice added in.

I was able to get most of the way through the Backend challenge, but was having issues with user authentication stuff that was more or less a mystery to me... Given more time I would likely be able to figure out the issue(s), but based on the verbiage of the error(s) I was receiving, it seems to be something deep-rooted in the way I was trying to access the in-memory database along with the machine I'm using for some reason. I was able to test the logic most of the way through, but it's likely not perfect due to this weird authentication/authorization issue.

I finished the first part of the Database challenge but did not attempt the second part. This is probably the area in which I have the least amount of recent experience, so go easy on me!

Thanks in advance for taking the time to look over my PR!