Add support for 3D types in the PostGIS provider
Fix Blocker issue 8487
Custom CRS are saved if cannot find an existing one with same parameters
(except datum which may be optionnal, as GDAL seems to have drop it)
Remove st_force2d from postgres provider
fix warnings
added listAllFeatureIds and check that features exist when setting selection
rename QgsVectorLayer::listAllFeatureIds() to allFeatureIds() (followup dd48cd3)
cleanup on e50f042