Update the architecture graphic

[BretFisher]

Update the graphic to show the various options for running a service. For example, indicate the worker is .NET or Java.

Also, since it has arrows to indicate traffic paths, maybe consider showing network boundaries and user access points.

[DivSriv]

#231 - Hi Bret, I've updated the architecture diagram with graphics and icons for respective services and to show the various options for running a service.
Please take a look and approve/merge if its okay.

[mikesir87]

Closing as no longer relevant now that we're simplifying the repo and removing all of the other options.