52North/IlwisCore — pull request #69 by ridoo (2014-09-04 11:17:16+00:00)
Title: Feature/epsg codes with latlon ordering to runtime database

This feature will add a new table to the `PublicDatabase` and fill it with EPSG codes which are actually defined with lat/lon axes order. Ilwis uses simplified axes order, i.e. lon/lat or x/y axes order (which could be denoted to be).

It is clear that other orderings do exist. However, we should not rely on just saying "do always according to specification", or "do it always lon/lat" as this will result in having datasets (doing it the other way) will result in wrong results.

With this pull request Ilwis will keep all EPSG codes which are defined with lat/lon order in a simple database table. A `Resource` can then be prepared with a `forceXY` property to indicate if a connected data source enforces lon/lat order or if it respects the defined axes order specification according to the EPSG database.

The WFS Connector implementation for example assumes by default that defined axes order is respected by the connected Web Feature Service. Within the OGC world the specification rules. If for some reason there is a WFS which provides lon/lat ordered coordinates only (even for lat/lon specified CRS) the WFS can be prepared by
```
Resource resource("http://localhost/application/wfs?service=WFS", itCATALOG);
resource.addProperty("forceXY", false);
ICatalog cat(resource);
// ...
```