Server implements common functionality for all service implementations that use Gin.

Initializer services want to do work before the server is able to serve liveness probes (e.g.

Preparer services want to do work before the server is started up such as connecting to databases or other external resources.

Service specifies the methods that a service implementation for a specific microservice needs to implement in order to be registered with the http server.

Starter services want to do work (usually logging or booting up background routines) when the server is started up and ready.

Option allows users to set optional arguments on the server when creating it.