Add gorm

[KingAkeem]

A couple of things going on here.

1. Adding dependencies for GORM and it's postgres driver.
2. Integrating GORM by adding a database layer where models and setup will be done.
3. Adding SQL files to setup the initial database for GORM to use.
4. Adding configuration for postgres database instance.
5. Updating README to explain necessary installation steps for GORM postgres
6. GORM is now inserting requests monitored by the monitor package.

Currently, the database isn't being mocked so all tests will fail due to a nil error.

http.Header is now converted to a string so that it can be saved to the database.
The request body is read to a string so that it can be saved as well.