CartoDB: implement defered field creation; support boolean type; register tables with cdb_cartodbfytable(); fix creation of features with Date/DateTime/Time values

git-svn-id: https://svn.osgeo.org/gdal/trunk@28069 f0d54148-0727-0410-94bb-9a71ac55c965
Merge branch 'trunk' into trunk_with_coverage