Packaging of Fuseki

"Packaging" consists of groups of Fuseki system modules around the core system. There is one core system.

There are packaging for:

| Name | Command | Modules | Focus |
| -------- | ------- | ---------- | --- |
| "Basic" | `FusekiServerBasicCmd` | No unnecessary modules | Minimal SPARQL server |
| "Main" | `FusekiServerMainCmd` | Ping, Shiro, Prometheus | Headless triple store |
| "Plain" | `FusekiServerPlainCmd` | Ping, Shiro, Prometheus | Headless triple store with server admin |
| "UI" | `FusekiServerPlainCmd` | Admin, UI, Shiro, Prometheus, GeoSPARQL | The current server with UI ||

The combinations may change based on experience.
They can all also be run embedded.

"Basic and "main" are configured from the command line includes `--conf=`

"Plain" will, _in the future_, have server side administration. It will not have admin UI.

"UI" is the usual server. 'Admin' also sets ping, stats, which ought to be separate

The server configuration state, `run/`, is the record of the configuration and databases under control of the administration subsystem.

GeoSPARQL is an external Fuseki module which loads if present. It is included in "UI".

Java applications can provide their own combination of modules.