Implement JWT

[joshgarza]

• write signJWT, verifyJWT functions
• write validatePermissions function
• break routes into protected and unprotected routes
• adjust router logic to pass request through jwt flow or process route

[joshgarza]

signJWT and verifyJWT functions complete

[joshgarza]

routes separated into protected and unprotected routes

[joshgarza]

request now passes through middleware to validate the jwt if it is a protected route. otherwise, the request is processed

[joshgarza]

validateUser method created

User flow: Request -> if route is protected -> verifyJWT -> validateUser -> process request