Create JWT + Validate JWT Functionality

[SamratSahoo]

Issues

Fixes #3 and #5

Testing

• Yeah, idk how to test this, but my brain's compiler works when I walk through this, lol.

Development Notes

• Major Concern: I have defined a lot of types in the proto folder - not sure if there is a better way to standardize this (both in terms of naming convention and when we should be defining new types) - but this is something we should definitely seek out to set.
• Right now, I have a couple of empty interfaces defined in the API key controller - i.e. getProjectByApiKey, validateHashedApiKey, and getHashedApiKey which need access to the database information - I'm not sure how this works but those will need to be filled in for the end to end flow to work -- EDIT: Need hayden to finish up his ticket to have a API key database service I can call
• I have a JWT secret coded in via environment variables but also have a back-up in case the person does not set this: process.env.JWT_SECRET ?? 'secret' -- we should find a way to define constants for testing environments (i.e. not hard code in secret)
• JWTs are set to expire in 60 mins
• Only have minimal error handling and testing for now.
• Not sure if the structure of the code is correct