Add support for WPS

[cehbrecht]

I can work on WPS support. We need this for our project.

[justb4]

@cehbrecht excellent! Guess you mean adding Probe and Check Plugins for health-checking WPS endpoints?

[cehbrecht]

@justb4

Guess you mean adding Probe and Check Plugins for health-checking WPS endpoints?

... If you say so, just thought GeoHealthCheck is the right tool to check the availability of WPS services.

[justb4]

@cehbrecht yes it is:-), you can find Probe Plugins for most OGC services here:
https://github.com/geopython/GeoHealthCheck/tree/master/GeoHealthCheck/plugins/probe

There is already a WPS Capabilities Probe:
https://github.com/geopython/GeoHealthCheck/blob/master/GeoHealthCheck/plugins/probe/owsgetcaps.py#L159, but you may want to add additional Probes, or maybe a drilldown/crawler. Challenge may be long-running WPS Processes (though with an upcoming PR #175 we will have per-Probe scheduling) and async, but I'm no expert in WPS.