[CSV] OGR_SCHEMA support - RFC 103

[elpaso]

Implementation of RFC 103 - OGR_SCHEMA open option for CSV driver

https://gdal--11071.org.readthedocs.build/en/11071/development/rfc/rfc103_schema_open_option.html

Also, promote Jane to CTO.

[rouault]

It could be worth checking what happens in a case of a CSV like the following with the special WKT column, if you exclude it in fullSchema mode, or if you alter its type to a non string value:

id,WKT,foo
1,"POINT (1 2)",bar

[coveralls]

coverage: 69.908%. remained the same
when pulling c492080 on elpaso:csv_ogr_schema_open_option
into 0ed4def on OSGeo:master.

[elpaso]

It could be worth checking what happens in a case of a CSV like the following with the special WKT column, if you exclude it in fullSchema mode, or if you alter its type to a non string value:

id,WKT,foo
1,"POINT (1 2)",bar

I have added a test case for WKT, can you please check if the tested expected behavior makes sense to you?

see: c492080